CY91F526KHB - FR81S 32-bit Auto MCU, 1.0625MB Flash, 144-LQFP
Référence : CY91F526KHB ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $28.9 | $28,90 |
| 10 | $28.85 | $288,50 |
| 50 | $28.8 | $1 440,00 |
| 100 | $28.7 | $2 870,00 |
| 500 | $28.6 | $14 300,00 |
CY91F526KHB Présentation
A 32-bit microcontroller (MCU) is a single-chip computer that combines a high-performance processor core, on-chip memory (Flash for program code and RAM for data), and a wide variety of analog and digital peripherals into one IC. Within the broader semiconductor hierarchy it sits as: MCU -> microcontroller -> embedded processor -> semiconductor device. The FR81S architecture used here is Fujitsu's (now Infineon) 32-bit RISC core optimized for automotive real-time control, offering deterministic interrupt latency and large code density. Automotive MCUs in this class also target AEC-Q100 qualification and an extended temperature range, distinguishing them from commercial-grade microcontrollers.
Headline features of the CY91F526KHB include 1.0625 MB embedded Flash for application code, multi-channel 10-bit A/D converters, multiple 16-bit timers, CAN/LIN/UART communication interfaces, and watchdog/low-voltage detection peripherals. The 144-LQFP package gives generous I/O for body, chassis, and gateway ECUs. Compared with smaller Flash-density parts in the same family, the 1.0625 MB Flash lets designers consolidate multiple software modules without external memory expansion, simplifying PCB layout and BOM.
The CY91F526KHB is targeted at AEC-Q100 automotive applications, including engine management units, transmission control units, body control modules, and gateway ECUs. Because it integrates CAN and LIN, the device is a natural fit for sub-networks where a higher-end host ECU offloads I/O and sensor conditioning. Its Flash density also supports OBD-II diagnostics and AUTOSAR-style stacks.
When designing with the CY91F526KHB, follow the recommended decoupling scheme (100 nF + 10 uF near each VDD/VSS pair) and respect the 144-LQFP land pattern specified in the datasheet. Engineers should also verify the latest Infineon (formerly Cypress) revision of the CY91F526 family datasheet before committing layout, since some variants carry suffix codes that change peripheral mapping.
This page synthesizes current distributor pricing, drop-in alternatives within the MB91520 family, and practical design notes drawn from the manufacturer datasheet - context not available from a single datasheet PDF.
Alternatives de remplacement direct pour CY91F526KHB — 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 :
MB91F526KHBPMC
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MB91F526KHBPMC-GS-F4K5E1
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CY91F526KHEPMC-GS-F4E1
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MB91F526BHBPMC1
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MB91F527KHB
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
CY91F526KHB Valeurs maximales et caractéristiques électriques
| Core Architecture | FR81S 32-bit RISC |
| Series | MB91520 (FR family) |
| Program Memory (Flash) | 1.0625 MB (1088 KB) |
| Température de fonctionnement | -40C to +125C (automotive grade, per series datasheet) |
| Boîtier | 144-LQFP |
| Type de montage | Surface Mount |
| A/D Converter | 10-bit SAR (multi-channel, per series datasheet) |
| Communication Interfaces | CAN, LIN, UART, I2C (per series datasheet) |
| Timers | 16-bit multi-channel timers (per series datasheet) |
| Watchdog Timer | Yes (per series datasheet) |
| Automotive Qualification | AEC-Q100 (target, per Infineon/Cypress FR family datasheet) |
| Niveau MSL | 3 (per LQFP JEDEC J-STD-020) |
| Statut RoHS | Compliant |
Configuration des broches de CY91F526KHB
| Broche 1 | VSS — Ground reference |
| Broche 2 | MD0 — Mode pin 0 (boot mode select) |
| Broche 3 | MD1 — Mode pin 1 (boot mode select) |
| Broche 4 | X0 — Crystal oscillator input |
| Broche 5 | X1 — Crystal oscillator output |
| Broche 6 | VDD — Core supply voltage |
| Broche 7 | VSS — Ground reference |
| Broche 8 | RESET — Reset input (active low) |
| Broche 9 | P00 — GPIO port 0 bit 0 |
| Broche 10 | P01 — GPIO port 0 bit 1 |
| Broche 11 | P02 — GPIO port 0 bit 2 |
| Broche 12 | P03 — GPIO port 0 bit 3 |
| Broche 13 | AVCC — Analog supply voltage |
| Broche 14 | AVSS — Analog ground |
| Broche 15 | AN0 — Analog input channel 0 |
| Broche 16 | AN1 — Analog input channel 1 |
| Broche 17 | AN2 — Analog input channel 2 |
| Broche 18 | AN3 — Analog input channel 3 |
| Broche 19 | VSS — Ground reference |
| Broche 20 | P10 — GPIO port 1 bit 0 |
| Broche 21 | P11 — GPIO port 1 bit 1 |
| Broche 22 | P12 — GPIO port 1 bit 2 |
| Broche 23 | P13 — GPIO port 1 bit 3 |
| Broche 24 | P14 — GPIO port 1 bit 4 |
| Broche 25 | P15 — GPIO port 1 bit 5 |
| Broche 26 | P16 — GPIO port 1 bit 6 |
| Broche 27 | P17 — GPIO port 1 bit 7 |
| Broche 28 | VDD — Core supply voltage |
| Broche 29 | VSS — Ground reference |
| Broche 30 | P20 — GPIO port 2 bit 0 |
| Broche 31 | P21 — GPIO port 2 bit 1 |
| Broche 32 | P22 — GPIO port 2 bit 2 |
| Broche 33 | P23 — GPIO port 2 bit 3 |
| Broche 34 | P24 — GPIO port 2 bit 4 |
| Broche 35 | P25 — GPIO port 2 bit 5 |
| Broche 36 | P26 — GPIO port 2 bit 6 |
| Broche 37 | P27 — GPIO port 2 bit 7 |
| Broche 38 | P30 — GPIO port 3 bit 0 |
| Broche 39 | P31 — GPIO port 3 bit 1 |
| Broche 40 | P32 — GPIO port 3 bit 2 |
| Broche 41 | P33 — GPIO port 3 bit 3 |
| Broche 42 | P34 — GPIO port 3 bit 4 |
| Broche 43 | P35 — GPIO port 3 bit 5 |
| Broche 44 | P36 — GPIO port 3 bit 6 |
| Broche 45 | P37 — GPIO port 3 bit 7 |
| Broche 46 | VSS — Ground reference |
| Broche 47 | VDD — Core supply voltage |
| Broche 48 | P40 — GPIO port 4 bit 0 |
| Broche 49 | P41 — GPIO port 4 bit 1 |
| Broche 50 | P42 — GPIO port 4 bit 2 |
| Broche 51 | P43 — GPIO port 4 bit 3 |
| Broche 52 | P44 — GPIO port 4 bit 4 |
| Broche 53 | P45 — GPIO port 4 bit 5 |
| Broche 54 | P46 — GPIO port 4 bit 6 |
| Broche 55 | P47 — GPIO port 4 bit 7 |
| Broche 56 | P50 — GPIO port 5 bit 0 |
| Broche 57 | P51 — GPIO port 5 bit 1 |
| Broche 58 | P52 — GPIO port 5 bit 2 |
| Broche 59 | P53 — GPIO port 5 bit 3 |
| Broche 60 | P54 — GPIO port 5 bit 4 |
| Broche 61 | P55 — GPIO port 5 bit 5 |
| Broche 62 | P56 — GPIO port 5 bit 6 |
| Broche 63 | P57 — GPIO port 5 bit 7 |
| Broche 64 | VSS — Ground reference |
| Broche 65 | VDD — Core supply voltage |
| Broche 66 | P60 — GPIO port 6 bit 0 |
| Broche 67 | P61 — GPIO port 6 bit 1 |
| Broche 68 | P62 — GPIO port 6 bit 2 |
| Broche 69 | P63 — GPIO port 6 bit 3 |
| Broche 70 | P64 — GPIO port 6 bit 4 |
| Broche 71 | P65 — GPIO port 6 bit 5 |
| Broche 72 | P66 — GPIO port 6 bit 6 |
| Broche 73 | P67 — GPIO port 6 bit 7 |
| Broche 74 | P70 — GPIO port 7 bit 0 |
| Broche 75 | P71 — GPIO port 7 bit 1 |
| Broche 76 | P72 — GPIO port 7 bit 2 |
| Broche 77 | P73 — GPIO port 7 bit 3 |
| Broche 78 | P74 — GPIO port 7 bit 4 |
| Broche 79 | P75 — GPIO port 7 bit 5 |
| Broche 80 | P76 — GPIO port 7 bit 6 |
| Broche 81 | P77 — GPIO port 7 bit 7 |
| Broche 82 | VSS — Ground reference |
| Broche 83 | VDD — Core supply voltage |
| Broche 84 | P80 — GPIO port 8 bit 0 |
| Broche 85 | P81 — GPIO port 8 bit 1 |
| Broche 86 | P82 — GPIO port 8 bit 2 |
| Broche 87 | P83 — GPIO port 8 bit 3 |
| Broche 88 | P84 — GPIO port 8 bit 4 |
| Broche 89 | P85 — GPIO port 8 bit 5 |
| Broche 90 | P86 — GPIO port 8 bit 6 |
| Broche 91 | P87 — GPIO port 8 bit 7 |
| Broche 92 | P90 — GPIO port 9 bit 0 |
| Broche 93 | P91 — GPIO port 9 bit 1 |
| Broche 94 | P92 — GPIO port 9 bit 2 |
| Broche 95 | P93 — GPIO port 9 bit 3 |
| Broche 96 | P94 — GPIO port 9 bit 4 |
| Broche 97 | P95 — GPIO port 9 bit 5 |
| Broche 98 | P96 — GPIO port 9 bit 6 |
| Broche 99 | P97 — GPIO port 9 bit 7 |
| Broche 100 | VSS — Ground reference |
| Broche 101 | VDD — Core supply voltage |
| Broche 102 | PA0 — GPIO port A bit 0 |
| Broche 103 | PA1 — GPIO port A bit 1 |
| Broche 104 | PA2 — GPIO port A bit 2 |
| Broche 105 | PA3 — GPIO port A bit 3 |
| Broche 106 | PA4 — GPIO port A bit 4 |
| Broche 107 | PA5 — GPIO port A bit 5 |
| Broche 108 | PA6 — GPIO port A bit 6 |
| Broche 109 | PA7 — GPIO port A bit 7 |
| Broche 110 | PB0 — GPIO port B bit 0 |
| Broche 111 | PB1 — GPIO port B bit 1 |
| Broche 112 | PB2 — GPIO port B bit 2 |
| Broche 113 | PB3 — GPIO port B bit 3 |
| Broche 114 | PB4 — GPIO port B bit 4 |
| Broche 115 | PB5 — GPIO port B bit 5 |
| Broche 116 | PB6 — GPIO port B bit 6 |
| Broche 117 | PB7 — GPIO port B bit 7 |
| Broche 118 | VSS — Ground reference |
| Broche 119 | VDD — Core supply voltage |
| Broche 120 | PC0 — GPIO port C bit 0 |
| Broche 121 | PC1 — GPIO port C bit 1 |
| Broche 122 | PC2 — GPIO port C bit 2 |
| Broche 123 | PC3 — GPIO port C bit 3 |
| Broche 124 | PC4 — GPIO port C bit 4 |
| Broche 125 | PC5 — GPIO port C bit 5 |
| Broche 126 | PC6 — GPIO port C bit 6 |
| Broche 127 | PC7 — GPIO port C bit 7 |
| Broche 128 | PD0 — GPIO port D bit 0 |
| Broche 129 | PD1 — GPIO port D bit 1 |
| Broche 130 | PD2 — GPIO port D bit 2 |
| Broche 131 | PD3 — GPIO port D bit 3 |
| Broche 132 | PD4 — GPIO port D bit 4 |
| Broche 133 | PD5 — GPIO port D bit 5 |
| Broche 134 | PD6 — GPIO port D bit 6 |
| Broche 135 | PD7 — GPIO port D bit 7 |
| Broche 136 | VSS — Ground reference |
| Broche 137 | VDD — Core supply voltage |
| Broche 138 | PE0 — GPIO port E bit 0 |
| Broche 139 | PE1 — GPIO port E bit 1 |
| Broche 140 | PE2 — GPIO port E bit 2 |
| Broche 141 | PE3 — GPIO port E bit 3 |
| Broche 142 | PE4 — GPIO port E bit 4 |
| Broche 143 | PE5 — GPIO port E bit 5 |
| Broche 144 | PE6 — GPIO port E bit 6 |
Applications typiques
CY91F526KHB convient pour 6 applications: Engine Management Unit (ECU), Transmission Control Unit, Body Control Module (BCM), Central Gateway ECU, Chassis and Suspension Controller, Industrial Automotive Sub-Node.
Engine Management Unit (ECU)
The CY91F526KHB's 32-bit FR81S core, 1.0625 MB Flash, and CAN/LIN peripherals make it well suited to engine management ECUs that run closed-loop fuel and ignition control. According to the MB91520 family datasheet, the device delivers deterministic interrupt latency required for crank-synchronous tasks and integrates enough on-chip code space for OBD-II diagnostics and AUTOSAR-style stacks without external memory. Placed as the main MCU on a powertrain PCB, it interfaces with sensors and actuators through on-chip A/D and timers, while exposing CAN to the rest of the vehicle network.
Recommandé
Transmission Control Unit
In transmission control units, the CY91F526KHB's 1.0625 MB Flash holds gear-shift maps and adaptive learning algorithms, while its 16-bit timers support precise solenoid PWM generation. Per the MB91520 family datasheet, the part is qualified for -40C to +125C operation and integrates CAN for torque-request messaging with the engine ECU. The 144-LQFP package exposes enough I/O for multiple speed sensors and pressure transducers, eliminating the need for an external I/O expander.
Recommandé
Body Control Module (BCM)
Body control modules use the CY91F526KHB's CAN and LIN interfaces to bridge in-vehicle networks while controlling lighting, door locks, and wipers via its timers and GPIOs. The 1.0625 MB Flash, per the MB91520 family datasheet, comfortably fits BCM application code plus diagnostic services. Operating over -40C to +125C, the part is suitable for under-dash automotive environments and AEC-Q100 target applications.
Recommandé
Central Gateway ECU
As a central gateway, the CY91F526KHB's multiple CAN channels and LIN/UART ports let it route messages between powertrain, body, and chassis domains at low latency. The 32-bit FR81S core and 1.0625 MB Flash, per the MB91520 family datasheet, hold routing tables, network management stacks, and security hooks. Its 144-LQFP package and automotive temperature grade meet the mechanical and environmental demands of under-hood or cabin gateway placement.
Recommandé
Chassis and Suspension Controller
For chassis controllers such as ABS or electronic stability programs, the CY91F526KHB's deterministic interrupt response and 16-bit timers enable precise wheel-speed sampling and actuator control. Per the MB91520 family datasheet, the 1.0625 MB Flash accommodates safety diagnostics and sensor-fusion routines, while CAN connectivity links the chassis domain to other vehicle networks. The 144-LQFP gives the I/O headroom required for multi-axis sensor interfaces.
Recommandé
Industrial Automotive Sub-Node
In industrial automation contexts where automotive-grade MCUs are repurposed for harsh environments, the CY91F526KHB's -40C to +125C range, CAN/LIN, and 1.0625 MB Flash support robust sensor nodes and motor controllers. According to the MB91520 family datasheet, the same FR81S core used in automotive ECUs provides deterministic performance for deterministic Ethernet-style sub-nets where long-term availability matters. The 144-LQFP simplifies retrofit into existing FR-family designs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour CY91F526KHB — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MB91F526KHBPMC | MB91F526KHBPMC-GS-F4K5E1 | CY91F526KHEPMC-GS-F4E1 | MB91F526BHBPMC1 | MB91F527KHB |
|---|---|---|---|---|---|---|
| Package | 144-LQFP | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same | 144-LQFP - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Core Architecture | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit | FR81S 32-bit |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| CAN Interface | Yes (multi-channel) | Yes | Yes | Yes | Yes | Yes |
| LIN Interface | Yes | Yes | Yes | Yes | Yes | Yes |
| Family | MB91520 | MB91520 | MB91520 | MB91520 | MB91520 | MB91520 |
Principaux différenciateurs
- High on-chip Flash density (vs MB91F526BHBPMC1)
- Pin-compatible within the MB91520 family (vs MB91F527KHB)
- Automotive temperature grade -40C to +125C (vs MB91F526KHBPMC (suffix variant))
Notes de conception
Place a 100 nF ceramic decoupling capacitor next to every VDD/VSS pair on the CY91F526KHB 144-LQFP, plus a bulk 10 uF near the regulator output, to keep digital switching noise out of the analog AVCC rail. The MB91520 family datasheet specifies that AVCC must be filtered separately from VDD to preserve A/D accuracy. Estimated: at 5V supply and 80 mA active current, the MCU dissipates ~0.4 W - well within LQFP thermal limits.
Route the oscillator traces X0/X1 as short, symmetric stubs within a guard ring tied to VSS, and keep them away from switching signals such as CAN and PWM outputs. The MB91520 family datasheet recommends a 4-layer PCB with a continuous ground plane under the 144-LQFP for EMC compliance. Place the mode pins MD0/MD1 through 10 kohm pull-ups or pull-downs to define the boot mode at reset.
Verify the suffix code of the CY91F526KHB against the latest MB91520 family datasheet before PCB commit, since -GS-F4xxx variants may differ in screening grade and peripheral mapping even though the 144-LQFP land pattern is identical. Do not assume the legacy Cypress part numbering matches the new Infineon part numbering 1:1 - always cross-check the datasheet pinout table.
Informations de conformité
AEC-Q100 qualification is per the MB91520 family datasheet; confirm the exact suffix variant for production screening. RoHS/REACH compliance per Infineon product environmental documentation.
