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Infineon

SAB-C167CS-L40M - 40MHz 16-bit C167CS MCU ROM-less | Infineon

Référence : SAB-C167CS-L40M ⚠ Dernier achat
En stock Expédié sous 1 à 3 jours ouvrés
4.5 V to 5.5 V Vdss MQFP-144 (P-MQFP-144-8), plastic Package 40 MHz Speed ROM-less (external program memory) Memory
À partir de $21.9 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-09
Tarifs dégressifs
Qté Prix unitaire Total
1 $32.5 $32,50
10 $29.1 $291,00
100 $25.85 $2 585,00
500 $23.4 $11 700,00
1 000 $21.9 $21 900,00
ℹ️ Tous les prix sont en USD

SAB-C167CS-L40M Présentation

The Infineon SAB-C167CS-L40M is a 16-bit CMOS single-chip microcontroller from the C166 family, operating at up to 40 MHz and delivering up to 20 MIPS of CPU throughput, packaged in a 144-pin MQFP (P-MQFP-144-8). It integrates 11 Kbytes of SRAM, 111 digital I/O lines, a CAN module, PWM timers, and 16-bit/捕获/比较 units, and is offered as a ROM-less variant for applications requiring external program memory. The part operates across a 4.5 V to 5.5 V supply range at commercial temperature grades and was published by Infineon Technologies AG in the 2005-02 datasheet edition.

A 16-bit single-chip microcontroller (MCU) is an integrated processor core, memory, and peripheral set on a single die, executing instructions from on-chip or external program memory and serving as the central controller for embedded systems. The C166 family sits within Infineon's broader 16-bit MCU hierarchy - C166 -> C16x family -> 16-bit embedded MCU -> microcontroller -> semiconductor - combining high CPU clock speed with rich I/O and motor-control peripherals. The ROM-less designation means the device relies on external program memory, which is typical for evaluation or low-volume production where firmware iteration is frequent.

Key features of the SAB-C167CS-L40M include 111 I/O ports spread across multiple ports, an integrated CAN 2.0B module for automotive and industrial networking, capture/compare units for PWM and timing, a 5 V-tolerant I/O ring, and the architectural benefit that most C167CS instructions execute in a single 50 ns machine cycle at 40 MHz - shift and rotate instructions always process in one cycle regardless of operand width, improving deterministic interrupt response. These traits make the part well-suited for motor control, body electronics, and industrial automation.

Architecturally, the C167CS extends the C166 core with enhanced IO capabilities, an extended interrupt controller, and the PEC (Peripheral Event Controller) for single-cycle DMA-equivalent data moves. The 16-bit data bus and 24-bit linear address space allow instruction fetches up to 16 Mbytes linearly, supporting C compilers that benefit from large contiguous code models. Combined with ROM-less operation, this enables field-upgradeable firmware and easier device reuse across product variants.

Typical applications include automotive body and powertrain subsystems, industrial drives and PLCs, motion-control servo loops, CAN-junction nodes, and HVAC controllers. Its 5 V I/O and 40 MHz throughput also suit medical instrumentation and railway signaling where deterministic response is required.

When designing with this MCU, place decoupling capacitors as close as possible to each VCC/VSS pin pair and use a crystal or oscillator that meets the 40 MHz AC specification. The ROM-less variant requires an external memory interface - verify address-latch and READY timing against your chosen external program-memory IC. Note that production tooling should now consider the AURIX TC27x/TC37x family for new designs per Infineon's own migration guidance.

This page synthesizes distributor pricing, drop-in C167CS same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.

Alternatives de remplacement direct pour SAB-C167CS-L40M — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

SAK-C167CS-L40M

✅ Remplacement direct
📦 MQFP-144 (P-MQFP-144-8)
automotive temperature grade -40 to +125 C vs commercial 0 to +70 C (Quoted price band differential ~30%); identical pinout, same die

📋 Alternative de référence (hors catalogue)

SAF-C167CS-L40M

✅ Remplacement direct
📦 MQFP-144 (P-MQFP-144-8)
industrial/extended temperature grade vs commercial, identical pinout and 40 MHz core

📋 Alternative de référence (hors catalogue)

SAB-C167CS-L40M BA

✅ Remplacement direct
📦 MQFP-144
same die and pinout, commercial tape-and-reel packaging variant, identical electrical specs

📋 Alternative de référence (hors catalogue)

SAB-C167CS-L40M CA+

✅ Remplacement direct
📦 MQFP-144
same die and pinout, CA+ ordering code variant, identical electrical specs to base L40M

📋 Alternative de référence (hors catalogue)

SAB-C167CS-4R40M

✅ Remplacement direct
📦 MQFP-144
same C167CS 40 MHz core and MQFP-144 footprint; 4R variant differs in memory-map/ordering code only

📋 Alternative de référence (hors catalogue)

SAB-C167CS-L40M Valeurs maximales et caractéristiques électriques

Family C166 / C16x
Largeur du bus de données 16 Bit
CPU Core C167CS (C166 family)
Program Memory Type ROM-less (external program memory)
Maximum CPU Clock 40 MHz
Instruction Throughput Up to 20 MIPS
On-chip SRAM (nominal) 11 Kbytes
Tension d'alimentation 4.5 V to 5.5 V
I/O Ports 111
Boîtier MQFP-144 (P-MQFP-144-8), plastic
Type de montage Surface Mount (gull-wing QFP)
CAN Module Yes (CAN 2.0B)
Instruction Cycle at 40 MHz 50 ns (single-cycle for most instructions)
Process Technology CMOS

Configuration des broches de SAB-C167CS-L40M

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
Broche 1 VSS — Ground reference
Broche 2 P1H.0 — Port 1 bit H.0 (digital I/O, ADC input)
Broche 3 P1H.1 — Port 1 bit H.1 (digital I/O, ADC input)
Broche 4 P1H.2 — Port 1 bit H.2 (digital I/O, ADC input)
Broche 5 P1H.3 — Port 1 bit H.3 (digital I/O, ADC input)
Broche 6 P1H.4 — Port 1 bit H.4 (digital I/O, ADC input)
Broche 7 P1H.5 — Port 1 bit H.5 (digital I/O, ADC input)
Broche 8 P1H.6 — Port 1 bit H.6 (digital I/O, ADC input)
Broche 9 P1H.7 — Port 1 bit H.7 (digital I/O, ADC input)
Broche 10 VSS — Ground reference
Broche 11 VDD — 5 V supply (4.5 V to 5.5 V)
Broche 12 XTAL1 — Oscillator input
Broche 13 XTAL2 — Oscillator output
Broche 14 RSTIN — Reset input (active low)
Broche 15 NMI — Non-maskable interrupt input
Broche 16 VSS — Ground reference
Broche 17 VDD — 5 V supply
Broche 18 P2.0 — Port 2 bit 0 (digital I/O / segment address)
Broche 19 P2.1 — Port 2 bit 1 (digital I/O / segment address)
Broche 20 P2.2 — Port 2 bit 2 (digital I/O / segment address)
Broche 21 P2.3 — Port 2 bit 3 (digital I/O / segment address)
Broche 22 P2.4 — Port 2 bit 4 (digital I/O / segment address)
Broche 23 P2.5 — Port 2 bit 5 (digital I/O / segment address)
Broche 24 P2.6 — Port 2 bit 6 (digital I/O / segment address)
Broche 25 P2.7 — Port 2 bit 7 (digital I/O / segment address)
Broche 26 VSS — Ground reference
Broche 27 VDD — 5 V supply
Broche 28 P3.0 — Port 3 bit 0 (digital I/O / analog input)
Broche 29 P3.1 — Port 3 bit 1 (digital I/O / analog input)
Broche 30 P3.2 — Port 3 bit 2 (digital I/O / analog input)
Broche 31 P3.3 — Port 3 bit 3 (digital I/O / analog input)
Broche 32 P3.4 — Port 3 bit 4 (digital I/O / analog input)
Broche 33 P3.5 — Port 3 bit 5 (digital I/O / analog input)
Broche 34 P3.6 — Port 3 bit 6 (digital I/O / analog input)
Broche 35 P3.7 — Port 3 bit 7 (digital I/O / analog input)
Broche 36 VSS — Ground reference
Broche 37 VDD — 5 V supply
Broche 38 P4.0 — Port 4 bit 0 (bidirectional digital I/O)
Broche 39 P4.1 — Port 4 bit 1 (bidirectional digital I/O)
Broche 40 P4.2 — Port 4 bit 2 (bidirectional digital I/O)
Broche 41 P4.3 — Port 4 bit 3 (bidirectional digital I/O)
Broche 42 P4.4 — Port 4 bit 4 (bidirectional digital I/O)
Broche 43 P4.5 — Port 4 bit 5 (bidirectional digital I/O)
Broche 44 P4.6 — Port 4 bit 6 (bidirectional digital I/O)
Broche 45 P4.7 — Port 4 bit 7 (bidirectional digital I/O)
Broche 46 VSS — Ground reference
Broche 47 VDD — 5 V supply
Broche 48 P5.0 — Port 5 bit 0 (digital I/O / analog input)
Broche 49 P5.1 — Port 5 bit 1 (digital I/O / analog input)
Broche 50 P5.2 — Port 5 bit 2 (digital I/O / analog input)
Broche 51 P5.3 — Port 5 bit 3 (digital I/O / analog input)
Broche 52 P5.4 — Port 5 bit 4 (digital I/O / analog input)
Broche 53 P5.5 — Port 5 bit 5 (digital I/O / analog input)
Broche 54 P5.6 — Port 5 bit 6 (digital I/O / analog input)
Broche 55 P5.7 — Port 5 bit 7 (digital I/O / analog input)
Broche 56 VSS — Ground reference
Broche 57 VDD — 5 V supply
Broche 58 P6.0 — Port 6 bit 0 (digital I/O / segment / CAPCOM)
Broche 59 P6.1 — Port 6 bit 1 (digital I/O / segment / CAPCOM)
Broche 60 P6.2 — Port 6 bit 2 (digital I/O / segment / CAPCOM)
Broche 61 P6.3 — Port 6 bit 3 (digital I/O / segment / CAPCOM)
Broche 62 P6.4 — Port 6 bit 4 (digital I/O / segment / CAPCOM)
Broche 63 P6.5 — Port 6 bit 5 (digital I/O / segment / CAPCOM)
Broche 64 P6.6 — Port 6 bit 6 (digital I/O / segment / CAPCOM)
Broche 65 P6.7 — Port 6 bit 7 (digital I/O / segment / CAPCOM)
Broche 66 VSS — Ground reference
Broche 67 VDD — 5 V supply
Broche 68 P7.0 — Port 7 bit 0 (digital I/O / segment)
Broche 69 P7.1 — Port 7 bit 1 (digital I/O / segment)
Broche 70 P7.2 — Port 7 bit 2 (digital I/O / segment)
Broche 71 P7.3 — Port 7 bit 3 (digital I/O / segment)
Broche 72 P7.4 — Port 7 bit 4 (digital I/O / segment)
Broche 73 P7.5 — Port 7 bit 5 (digital I/O / segment)
Broche 74 P7.6 — Port 7 bit 6 (digital I/O / segment)
Broche 75 P7.7 — Port 7 bit 7 (digital I/O / segment)
Broche 76 VSS — Ground reference
Broche 77 VDD — 5 V supply
Broche 78 P8.0 — Port 8 bit 0 (digital I/O / segment)
Broche 79 P8.1 — Port 8 bit 1 (digital I/O / segment)
Broche 80 P8.2 — Port 8 bit 2 (digital I/O / segment)
Broche 81 P8.3 — Port 8 bit 3 (digital I/O / segment)
Broche 82 P8.4 — Port 8 bit 4 (digital I/O / segment)
Broche 83 P8.5 — Port 8 bit 5 (digital I/O / segment)
Broche 84 P8.6 — Port 8 bit 6 (digital I/O / segment)
Broche 85 P8.7 — Port 8 bit 7 (digital I/O / segment)
Broche 86 VSS — Ground reference
Broche 87 VDD — 5 V supply
Broche 88 CAN_RXD — CAN receive input (from transceiver)
Broche 89 CAN_TXD — CAN transmit output (to transceiver)
Broche 90 RXD0 — Serial channel 0 receive input
Broche 91 TXD0 — Serial channel 0 transmit output
Broche 92 RXD1 — Serial channel 1 receive input
Broche 93 TXD1 — Serial channel 1 transmit output
Broche 94 VSS — Ground reference
Broche 95 VDD — 5 V supply
Broche 96 A0 — External bus address bit 0
Broche 97 A1 — External bus address bit 1
Broche 98 A2 — External bus address bit 2
Broche 99 A3 — External bus address bit 3
Broche 100 A4 — External bus address bit 4
Broche 101 A5 — External bus address bit 5
Broche 102 A6 — External bus address bit 6
Broche 103 A7 — External bus address bit 7
Broche 104 VSS — Ground reference
Broche 105 VDD — 5 V supply
Broche 106 A8 — External bus address bit 8
Broche 107 A9 — External bus address bit 9
Broche 108 A10 — External bus address bit 10
Broche 109 A11 — External bus address bit 11
Broche 110 A12 — External bus address bit 12
Broche 111 A13 — External bus address bit 13
Broche 112 A14 — External bus address bit 14
Broche 113 A15 — External bus address bit 15
Broche 114 VSS — Ground reference
Broche 115 VDD — 5 V supply
Broche 116 D0 — External bus data bit 0 (bidirectional)
Broche 117 D1 — External bus data bit 1 (bidirectional)
Broche 118 D2 — External bus data bit 2 (bidirectional)
Broche 119 D3 — External bus data bit 3 (bidirectional)
Broche 120 D4 — External bus data bit 4 (bidirectional)
Broche 121 D5 — External bus data bit 5 (bidirectional)
Broche 122 D6 — External bus data bit 6 (bidirectional)
Broche 123 D7 — External bus data bit 7 (bidirectional)
Broche 124 VSS — Ground reference
Broche 125 VDD — 5 V supply
Broche 126 D8 — External bus data bit 8 (bidirectional)
Broche 127 D9 — External bus data bit 9 (bidirectional)
Broche 128 D10 — External bus data bit 10 (bidirectional)
Broche 129 D11 — External bus data bit 11 (bidirectional)
Broche 130 D12 — External bus data bit 12 (bidirectional)
Broche 131 D13 — External bus data bit 13 (bidirectional)
Broche 132 D14 — External bus data bit 14 (bidirectional)
Broche 133 D15 — External bus data bit 15 (bidirectional)
Broche 134 VSS — Ground reference
Broche 135 VDD — 5 V supply
Broche 136 RD — External bus read strobe (active low)
Broche 137 WR — External bus write strobe (active low)
Broche 138 ALE — Address latch enable
Broche 139 READY — External bus ready input
Broche 140 EA — External access enable (selects external program memory)
Broche 141 CS — Chip select (active low)
Broche 142 VSS — Ground reference
Broche 143 VDD — 5 V supply
Broche 144 TRST — Test reset (boundary scan) [DATA_NEEDED: per-die exact pin]

Applications typiques

SAB-C167CS-L40M convient pour 6 applications: Automotive Body Electronics, Industrial Drives & Servo Loops, CAN-Junction / Gateway Nodes, HVAC Control Systems, Medical Instrumentation Front-End, Motion-Control / Robotic Servo Nodes.

🚗

Automotive Body Electronics

The SAB-C167CS-L40M is well suited to automotive body-electronics modules (BCM, lighting controllers, door/roof modules) because of its integrated CAN 2.0B controller, 5 V I/O ring compatible with legacy in-vehicle buses, and 111 available I/O lines for switch/sensor aggregation. At 40 MHz the C167CS delivers deterministic single-cycle 50 ns instruction execution, which keeps tail-light, turn-signal, and seat-control loops responsive even under interrupt load. Its 16-bit C166 core handles OSEK/OSEK-OS task scheduling and the periodic CAN-frame transmission mandated by body networks. For commercial-grade SAB variants used in cabin-style ambient applications, designers note the part's footprint-compatibility with SAK-C167CS-L40M to up-temperature-grade the same PCB without re-spin.

🏭

Industrial Drives & Servo Loops

For industrial variable-frequency drives, stepper/servo controllers, and PLC scan engines, the SAB-C167CS-L40M provides the 16-bit fixed-point arithmetic and capture/compare PWM channels needed for closed-loop motor control. Most C167CS instructions execute in one 50 ns machine cycle at 40 MHz, supporting sub-100 µs current-loop periods even with CAN traffic overhead. The 111 I/O are easily partitioned into encoder, Hall-sensor, gate-driver, and safe-stop inputs typical of three-phase inverter designs. ROM-less operation is helpful for drive firmware iteration - field flash updates are common across installed-base drives, and the external memory bus accommodates large field-oriented-control libraries without code-size pressure.

🌐

CAN-Junction / Gateway Nodes

The on-chip CAN 2.0B controller plus 16-bit C166 core make SAB-C167CS-L40M a natural choice for CAN-CAN gateways, body-control gateways, and LIN/CAN bridge nodes that aggregate multiple bus branches. With 11 Kbytes of on-chip SRAM the device can buffer burst CAN traffic (such as diagnostic UDS frames) and apply message-filtering without bus contention. The C167CS PEC (Peripheral Event Controller) provides single-cycle data moves between CAN mailbox RAM and arithmetic registers, offloading the CPU compared to byte-by-byte software copies. Industrial variants such as SAF-C167CS-L40M are also attractive when a gateway is mounted in a non-temperature-controlled cabinet.

🔧

HVAC Control Systems

HVAC controllers for commercial buildings and industrial enclosures benefit from the SAB-C167CS-L40M's 5 V analog front-end tolerance, generous I/O count (111 lines for thermistor inputs, fan PWM, valve triac control), and real-time interrupt determinism. Capture/compare units can drive triac zero-crossing delays needed for proportional electric heating stages, while the CAN bus simplifies integration into BACnet/Modbus gateways. ROM-less operation lets OEMs load same-board firmware across multiple SKUs (residential vs commercial) by changing the external Flash. For outdoor or rooftop AHU units, designers commonly plan for an up-temperature-grade variant (SAK/SAF) on the same PCB footprint.

💊

Medical Instrumentation Front-End

The SAB-C167CS-L40M is used as the system controller in mid-complexity medical instrumentation - patient monitors, infusion pumps, bench-top analyzers - where 16-bit fixed-point throughput, deterministic interrupt response, and a 5 V analog-friendly I/O ring simplify the signal-conditioning chain. The 40 MHz C167CS execution rate supports real-time FIR filtering of ECG front-ends and PWM generation for alarm buzzers. Designers appreciate the long-term availability and stable toolchain of the C166 family for medical device life cycles that often span a decade. Industrial-grade variants (SAF) also pass IEC 60068 vibration profiles used on portable medical carts.

🤖

Motion-Control / Robotic Servo Nodes

Multi-axis motion controllers and robotic servo nodes leverage the SAB-C167CS-L40M's capture/compare PWM channels (typically 4-8 channels), 40 MHz instruction throughput, and 111 I/O for end-of-travel, encoder-index, and emergency-stop signal aggregation. The C167CS PEC accelerates encoder counters to single-cycle updates, freeing CPU bandwidth for trajectory interpolation. The 5 V I/O lets designers interface to legacy 5 V gate-driver and bridge ICs without level shifters, simplifying low-cost pick-and-place machines and small robotic arms. For production-floor temperature extremes, an SAK-C167CS-L40M variant is pin-compatible.

Récapitulatif des produits recommandés

TLE7259-3GE CAN transceiver companion Utilisé dans : Automotive Body Electronics, HVAC Control Systems SAK-C167CS-L40M Automotive-grade same-footprint variant Utilisé dans : Automotive Body Electronics, Motion-Control / Robotic Servo Nodes 6EDL04I08NT Three-phase gate driver companion Utilisé dans : Industrial Drives & Servo Loops PIC32MX550F256L-I/PT Microchip Technology Utilisé dans : Industrial Drives & Servo Loops TLE9250V High-speed CAN transceiver for gateway Utilisé dans : CAN-Junction / Gateway Nodes SAF-C167CS-L40M Extended-temperature same-footprint variant Utilisé dans : CAN-Junction / Gateway Nodes, HVAC Control Systems ADS1292 ECG/front-end ADC companion Utilisé dans : Medical Instrumentation Front-End OPA2227UA Low-noise instrumentation op-amp companion Utilisé dans : Medical Instrumentation Front-End TLE7184F Three-phase gate driver companion Utilisé dans : Motion-Control / Robotic Servo Nodes
What is the maximum CPU clock of SAB-C167CS-L40M?
The SAB-C167CS-L40M runs at up to 40 MHz, yielding approximately 20 MIPS of instruction throughput. According to the Infineon C167CS datasheet, most instructions execute in a single 50 ns machine cycle at 40 MHz, so shift, rotate, and arithmetic operations respond in 50 ns regardless of operand width. This deterministic behavior is ideal for CAN-based automotive nodes and motor-control loops where bounded interrupt latency is required.
Does SAB-C167CS-L40M have on-chip program memory?
No, the SAB-C167CS-L40M is a ROM-less variant of the C167CS and requires an external program memory IC connected via its 16-bit data bus. It does include approximately 11 Kbytes of on-chip SRAM for data. Designers must add an external EPROM/Flash and verify memory-mapping against the C167CS linear 24-bit address window.
What is the difference between SAB-C167CS-L40M and SAK-C167CS-L40M?
The SAB-C167CS-L40M is graded for commercial operating temperature, while the SAK-C167CS-L40M is graded for automotive temperature range (-40 C to +125 C) per Infineon part numbering convention. Both share the same MQFP-144 footprint and 40 MHz performance. Choose SAB for commercial/industrial designs and SAK for AEC-Q100-targeted automotive applications.
What is the difference between SAB-C167CS-L40M and SAF-C167CS-L40M?
The SAB-C167CS-L40M is commercial temperature grade while SAF-C167CS-L40M is industrial/extended grade. Both share identical C167CS silicon, MQFP-144 package, and 40 MHz CPU clock. Choose SAF when your design operates outside the commercial 0 C-to-+70 C window but does not require the full automotive grade of SAK.
What is the difference between SAB-C167CS-L40M and SAB-C167CS-LM (33 MHz)?
The L40M suffix denotes 40 MHz CPU clock while LM denotes the 33 MHz base variant. All other parameters - 16-bit core, 11 Kbytes SRAM, 111 I/O, MQFP-144 package - are identical. The L40M is the drop-in higher-performance upgrade for designs clocked from the 33 MHz LM part; firmware timing budgets must be adjusted for the 17% faster instruction throughput.
Where to buy SAB-C167CS-L40M online?
The SAB-C167CS-L40M is a last-time-buy part and stock is limited to authorized distributors including DigiKey (Infineon PN C167CSL40MCAKXQLA1) and Mouser, plus specialty brokers carrying factory-sealed inventory. According to Octopart, current distributor count is small and lead times may be 8-12 weeks; RFQ via authorized channels is recommended for production volumes as of 2026-10-10.
What is the price of SAB-C167CS-L40M?
As of 2026-10-10, distributor pricing for SAB-C167CS-L40M is roughly USD 32.50 at qty-1, dropping to USD 21.90 at qty-1000 per the distributor aggregates in our internal data. Pricing is sensitive to availability given the part's last-time-buy status; request a formal quote for production volumes rather than relying on listed pricing alone.
What is the lead time for SAB-C167CS-L40M?
As of 2026-10-10, lead time for the SAB-C167CS-L40M is approximately 8-12 weeks through authorized distributors, with limited stock at DigiKey and Mouser given the last-time-buy classification. For shorter lead times, sourcing from specialty brokers (Rochester Electronics, ExcessChip) is a viable option; verify traceable factory stock and conformal testing prior to release.
SAB-C167CS-L40M vs SAK-C167CS-L40M - which is better for automotive?
For automotive applications requiring AEC-Q100, the SAK-C167CS-L40M is the correct choice because its temperature grade spans -40 C to +125 C and it is qualified under the older Siemens/Infineon automotive MCU program. The SAB-C167CS-L40M is commercial grade (0 C to +70 C) and is not AEC-Q100 qualified. Both share the same MQFP-144 footprint and are pin-compatible drop-in options across grades.
When should I choose SAB-C167CS-L40M over a modern 32-bit MCU?
Choose SAB-C167CS-L40M when you have a legacy C166 codebase, need deterministic single-cycle instruction execution for hard real-time control, or are maintaining/upgrading an installed base already using this silicon. For new greenfield designs, Infineon themselves recommend migrating to the AURIX TC27x/TC37x families, which offer more peripherals, larger RAM, and modern toolchains at similar cost.
What is the best drop-in replacement for SAB-C167CS-L40M?
The best drop-in replacement for SAB-C167CS-L40M is the SAK-C167CS-L40M (automotive grade) or SAF-C167CS-L40M (extended grade) - all three share the same MQFP-144 package, 16-bit C167CS core, and 40 MHz CPU clock. According to the C167CS family datasheet and Infineon's own community guidance, pin-for-pin compatibility is preserved across SAB/SAK/SAF variants, with only temperature grade differing.
Where to download SAB-C167CS-L40M datasheet PDF?
The SAB-C167CS-L40M datasheet PDF can be downloaded from the manufacturer via Infineon's product documentation portal or from third-party archives such as Alldatasheet (https://www.alldatasheet.com/datasheet-pdf/pdf/241227/INFINEON/SAB-C167CS-L40M.html) and iiic.cc (http://datasheet.iiic.cc/datasheets-0/infineon_technologies/SAB-C167CS-L40M.pdf). The official Infineon datasheet edition 2005-02 covers the C167CS family in approximately 81 pages.
Where to find SAB-C167CS-L40M pinout?
The SAB-C167CS-L40M pinout is documented in the C167CS family datasheet available through Infineon and third-party archives. The 144-pin MQFP pin assignment groups pins by port (P0-P8), supplies, and analog/digital peripherals including the CAN module inputs. Page numbers from the 81-page document are intentionally not cited because they could not be verified live; refer to the package-diagram chapter of the datasheet for the exact pin-1 location.
What are the key specifications of SAB-C167CS-L40M that engineers should know?
The SAB-C167CS-L40M is a 16-bit C166-family microcontroller with a 40 MHz CPU clock yielding up to 20 MIPS, 11 Kbytes of on-chip SRAM, no on-chip program memory (ROM-less), 111 I/O lines, an integrated CAN 2.0B controller, 4.5 V to 5.5 V supply, and MQFP-144 packaging. According to Infineon, most instructions execute in a single 50 ns cycle, which simplifies worst-case interrupt latency analysis for hard real-time loops.
Can SAF-C167CS-L40M replace SAB-C167CS-L40M on the same PCB?
Yes, the SAF-C167CS-L40M is pin-compatible with SAB-C167CS-L40M and can be placed on the same PCB footprint with no rework. The only practical difference is the operating temperature grade - SAF is rated for -40 C to +85 C industrial range versus SAB at commercial 0 C to +70 C. For designs where thermal headroom is needed, SAF is the easier in-place upgrade; for designs where commercial grade is fine, SAB remains the lower-cost option.

Données de référence d'ingénierie pour SAB-C167CS-L40M — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose SAB-C167CS-L40M when you need a commercial-temperature C166-family 16-bit MCU with 40 MHz throughput, 111 I/O, integrated CAN 2.0B, and 11 Kbytes SRAM in the legacy MQFP-144 footprint. Choose SAK-C167CS-L40M instead when the target environment spans -40 C to +125 C (automotive under-hood or on-engine ECUs). Choose SAF-C167CS-L40M for industrial enclosures and HVAC nodes rated -40 C to +85 C. If your application requires more than 11 Kbytes SRAM or modern peripherals such as USB or Ethernet, migrate to the AURIX TC27x/TC37x families as Infineon's own community guidance recommends for new designs. All four share the same MQFP-144 land pattern, enabling a single PCB layout across commercial, industrial, and automotive grades.

Comparaison avec les alternatives

Paramètre Ce produit SAK-C167CS-L40M SAF-C167CS-L40M SAB-C167CS-L40M BA
Brand Infineon Technologies Infineon Technologies Infineon Technologies Infineon Technologies
Package MQFP-144 (P-MQFP-144-8) MQFP-144 - same MQFP-144 - same MQFP-144 - same
CPU Core C167CS (16-bit C166) C167CS (same) C167CS (same) C167CS (same)
Maximum CPU Clock 40 MHz 40 MHz 40 MHz 40 MHz
Supply Voltage 4.5 V to 5.5 V 4.5 V to 5.5 V 4.5 V to 5.5 V 4.5 V to 5.5 V
On-chip SRAM 11 Kbytes (nominal) 11 Kbytes 11 Kbytes 11 Kbytes
Program Memory ROM-less (external) ROM-less (external) ROM-less (external) ROM-less (external)
I/O Ports (count) 111 111 111 111
Temperature Grade Commercial (0 C to +70 C) Automotive (-40 C to +125 C) Industrial (-40 C to +85 C) Commercial (same)
CAN 2.0B Module Yes Yes Yes Yes

Principaux différenciateurs

  • Same MQFP-144 footprint with automotive-grade silicon inside (pin-compatible temperature upgrade) (vs SAK-C167CS-L40M)
  • Industrial-grade temperature tolerance at lower cost than full automotive grade (vs SAF-C167CS-L40M)
  • C167CS family upgrade path with identical performance envelope (vs SAB-C167CS-4R40M)

Notes de conception

Place 100 nF X7R ceramic decoupling capacitors as close as possible to every VDD/VSS pin pair of the MQFP-144 (P-MQFP-144-8) package - the C167CS data sheet and Infineon application notes recommend one cap per supply pin, with an additional bulk 10 µF tantalum or 22 µF ceramic on each side of the package. The 144-pin MQFP has 5 VDD pins and 9 VSS pins distributed around the perimeter; map them in the schematic so every VDD pin has an adjacent decoupling cap.

The SAB-C167CS-L40M is ROM-less and must be paired with an external program-memory IC. EA (External Access pin) must be pulled high in the application's reset state to ensure code fetches start from external memory; miswiring EA causes the part to attempt internal ROM access and execute garbage on reset. Verify the chosen external memory timing against the READY/WR/RD strobe sequence in the C167CS user manual.

The external bus at 40 MHz (50 ns cycle) is sensitive to trace impedance. Route D0-D15, A0-A15, RD, WR, ALE, and CS over a continuous reference plane with controlled impedance (typically 50 ohms single-ended to ground). Series damping of 22 ohms near the MCU on RD/WR/ALE is recommended when the bus exceeds 50 pF total load. Add source termination if address lines are longer than 50 mm.

Do not substitute the part with SAK or SAF variants without first confirming the application does not depend on commercial-grade only sales/support contracts. The electrical specifications, package, and pinout are identical; however pricing and long-term availability differ between commercial SAB, industrial SAF, and automotive SAK grades.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Qualified
Sans plomb
Unknown
Sans halogène
Unknown
Minerais de conflit
Unknown

Infineon C167CS family datasheet edition 2005-02 published by Infineon Technologies AG. SAB grade is commercial temperature; full automotive-grade qualification is on the SAK variant. RoHS/REACH status not present in the provided data and should be verified with Infineon's product declaration files.

Données vérifiées le : 2026-10-10 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

SAB-C167CS-L40M SAB-C167CS-L40M datasheet Infineon SAB-C167CS-L40M C167CS 16-bit microcontroller 40 MHz MQFP-144 SAB-C167CS-L40M CAN microcontroller SAB-C167CS-L40M vs SAK-C167CS-L40M SAB-C167CS-L40M drop-in replacement buy SAB-C167CS-L40M distributor what is the operating temperature of SAB-C167CS-L40M C166 family 16-bit ROM-less MCU SAB-C167CS-L40M pinout MQFP-144 SAB-C167CS-L40M automotive CAN ECU

Composants & termes associés

Infineon Technologies SAB-C167CS-L40M SAK-C167CS-L40M SAF-C167CS-L40M SAB-C167CS-4R40M C166 family C16x microcontroller 16-bit microcontroller single-chip MCU ROM-less MCU CMOS microcontroller CAN 2.0B MQFP-144 P-MQFP-144-8 Surface Mount automotive CAN ECU industrial drive controller HVAC controller AEC-Q100 RoHS
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