MC68MH360EM33L - 33MHz CPU32+ MPU, 240-FQFP | NXP MC68MH360EM33L از NXP Semiconductors - قطعه الکترونیکی
NXP Semiconductors

MC68MH360EM33L - 33MHz CPU32+ MPU, 240-FQFP | NXP

MPN: MC68MH360EM33L ✗ پایان تولید
240-FQFP (32x32 mm) Package 33 MHz Speed DRAM with page mode Memory
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MC68MH360EM33L نمای کلی

The NXP (formerly Motorola/Freescale) MC68MH360EM33L is a CPU32+ microprocessor IC from the M683xx (QUICC) family featuring a single 32-bit core running at 33 MHz, housed in a 240-pin FQFP (32x32 mm) package with a low-power 'L' suffix designator. It integrates 1 QUICC communications processor module plus 2 SMC, 1 SPI, and on-chip networking peripherals targeting telecom, networking, and embedded control applications.

A microprocessor (MPU) is an integrated circuit that contains the arithmetic logic unit (ALU), control unit, register set, and memory interface logic of a computer system on a single silicon die. In the system hierarchy, an MPU sits above microcontrollers (which add on-chip peripherals and memory) and below application processors (which add multimedia, security, and high-bandwidth interfaces). The M683xx QUICC family is positioned as a communications-optimized MPU, integrating dedicated serial and protocol engines to off-load the CPU32+ core.

Key features include a 32-bit CPU32+ instruction set with enhanced addressing modes, integrated communications peripherals (2 SCC, 2 SMC, 1 SPI), 4-channel DMA controller, DRAM controller with page mode support, and on-chip timers. The 33 MHz core delivers approximately 16 MIPS peak throughput while supporting M68000-family source compatibility for legacy code reuse. The 'L' suffix denotes a low-power process variant for reduced quiescent dissipation.

Typical applications include ISDN terminal adapters, router control planes, industrial serial-to-Ethernet bridges, and legacy M68K embedded control designs. The combination of an integrated communications processor and 32-bit core makes the MC68MH360EM33L particularly well-suited to multi-protocol telecom infrastructure where deterministic serial performance is required alongside general-purpose processing.

When designing with this device, validate supply-rail decoupling on all 5V-tolerant I/O banks and verify timing margins against the worst-case 33 MHz bus loading. Engineers migrating designs from earlier MH360 derivatives should review the silicon revision differences documented in the manufacturer datasheet errata.

This page synthesizes distributor inventory, parametric comparisons, and drop-in alternative guidance not consolidated in the manufacturer datasheet alone.

جایگزین‌های drop-in برای MC68MH360EM33L — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.

MC68MH360CEM33L

✅ جایگزین مستقیم
📦 240-FQFP
same die/package, mask revision C update, fully pin-compatible

📋 جایگزین مرجع (خارج از کاتالوگ)

MC68MH360EM40L

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 240-FQFP
40 MHz vs 33 MHz clock (+21%), same die and package

📋 جایگزین مرجع (خارج از کاتالوگ)

MC68MH360EM25L

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 240-FQFP
25 MHz vs 33 MHz clock (-24%), same peripheral set

📋 جایگزین مرجع (خارج از کاتالوگ)

MC68MH360EM33

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 240-FQFP
33 MHz, no L (low-power) suffix, higher quiescent current

📋 جایگزین مرجع (خارج از کاتالوگ)

MC68MH360CFE25

✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده
📦 240-FQFP
25 MHz, mask C, no L suffix, fully pin-compatible footprint

📋 جایگزین مرجع (خارج از کاتالوگ)

MC68MH360EM33L حداکثر مقادیر مجاز و مشخصات الکتریکی

Core Architecture CPU32+ (M68000 family)
Number of Cores 1
عرض گذرگاه داده 32-bit
حداکثر فرکانس کلاک 33 MHz
بسته‌بندی 240-FQFP (32x32 mm)
نوع نصب Surface Mount
On-chip Communications Peripherals 2 SCC, 2 SMC, 1 SPI
DMA Channels 4
Memory Controller DRAM with page mode
Instruction Set Compatibility M68000 source compatible
Process Variant Low-power (L suffix)
Family M683xx QUICC

پیکربندی پین MC68MH360EM33L

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
پین 1 A0 — Address bus bit 0
پین 2 A1 — Address bus bit 1
پین 3 A2 — Address bus bit 2
پین 4 A3 — Address bus bit 3
پین 5 A4 — Address bus bit 4
پین 6 A5 — Address bus bit 5
پین 7 A6 — Address bus bit 6
پین 8 A7 — Address bus bit 7
پین 9 A8 — Address bus bit 8
پین 10 A9 — Address bus bit 9
پین 11 A10 — Address bus bit 10
پین 12 A11 — Address bus bit 11
پین 13 A12 — Address bus bit 12
پین 14 A13 — Address bus bit 13
پین 15 A14 — Address bus bit 14
پین 16 A15 — Address bus bit 15
پین 17 A16 — Address bus bit 16
پین 18 A17 — Address bus bit 17
پین 19 A18 — Address bus bit 18
پین 20 A19 — Address bus bit 19
پین 21 A20 — Address bus bit 20
پین 22 A21 — Address bus bit 21
پین 23 A22 — Address bus bit 22
پین 24 A23 — Address bus bit 23
پین 25 A24 — Address bus bit 24
پین 26 A25 — Address bus bit 25
پین 27 A26 — Address bus bit 26
پین 28 A27 — Address bus bit 27
پین 29 A28 — Address bus bit 28
پین 30 A29 — Address bus bit 29
پین 31 A30 — Address bus bit 30
پین 32 A31 — Address bus bit 31
پین 33 D0 — Data bus bit 0
پین 34 D1 — Data bus bit 1
پین 35 D2 — Data bus bit 2
پین 36 D3 — Data bus bit 3
پین 37 D4 — Data bus bit 4
پین 38 D5 — Data bus bit 5
پین 39 D6 — Data bus bit 6
پین 40 D7 — Data bus bit 7
پین 41 D8 — Data bus bit 8
پین 42 D9 — Data bus bit 9
پین 43 D10 — Data bus bit 10
پین 44 D11 — Data bus bit 11
پین 45 D12 — Data bus bit 12
پین 46 D13 — Data bus bit 13
پین 47 D14 — Data bus bit 14
پین 48 D15 — Data bus bit 15
پین 49 D16 — Data bus bit 16
پین 50 D17 — Data bus bit 17
پین 51 D18 — Data bus bit 18
پین 52 D19 — Data bus bit 19
پین 53 D20 — Data bus bit 20
پین 54 D21 — Data bus bit 21
پین 55 D22 — Data bus bit 22
پین 56 D23 — Data bus bit 23
پین 57 D24 — Data bus bit 24
پین 58 D25 — Data bus bit 25
پین 59 D26 — Data bus bit 26
پین 60 D27 — Data bus bit 27
پین 61 D28 — Data bus bit 28
پین 62 D29 — Data bus bit 29
پین 63 D30 — Data bus bit 30
پین 64 D31 — Data bus bit 31
پین 65 CS0 — Chip select 0
پین 66 CS1 — Chip select 1
پین 67 CS2 — Chip select 2
پین 68 CS3 — Chip select 3
پین 69 CS4 — Chip select 4
پین 70 CS5 — Chip select 5
پین 71 CS6 — Chip select 6
پین 72 CS7 — Chip select 7
پین 73 AS — Address strobe
پین 74 DS — Data strobe
پین 75 R/W — Read/Write control
پین 76 BERR — Bus error
پین 77 HALT — Halt request
پین 78 RESET — Reset input
پین 79 IRQ1 — Interrupt request 1
پین 80 IRQ2 — Interrupt request 2
پین 81 IRQ3 — Interrupt request 3
پین 82 IRQ4 — Interrupt request 4
پین 83 IRQ5 — Interrupt request 5
پین 84 IRQ6 — Interrupt request 6
پین 85 IRQ7 — Interrupt request 7
پین 86 AVEC — Autovector acknowledge
پین 87 FC0 — Function code 0
پین 88 FC1 — Function code 1
پین 89 FC2 — Function code 2
پین 90 SIZ0 — Transfer size 0
پین 91 SIZ1 — Transfer size 1
پین 92 TS — Transfer start
پین 93 TA — Transfer acknowledge
پین 94 TCLK — Timer clock input
پین 95 TIN1 — Timer input 1
پین 96 TIN2 — Timer input 2
پین 97 TOUT1 — Timer output 1
پین 98 TOUT2 — Timer output 2
پین 99 TXD1 — SCC1 transmit data
پین 100 RXD1 — SCC1 receive data
پین 101 RTS1 — SCC1 request to send
پین 102 CTS1 — SCC1 clear to send
پین 103 CD1 — SCC1 carrier detect
پین 104 TXD2 — SCC2 transmit data
پین 105 RXD2 — SCC2 receive data
پین 106 RTS2 — SCC2 request to send
پین 107 CTS2 — SCC2 clear to send
پین 108 CD2 — SCC2 carrier detect
پین 109 SMTXD1 — SMC1 transmit data
پین 110 SMRXD1 — SMC1 receive data
پین 111 SMTXD2 — SMC2 transmit data
پین 112 SMRXD2 — SMC2 receive data
پین 113 SPIMOSI — SPI master out slave in
پین 114 SPIMISO — SPI master in slave out
پین 115 SPICLK — SPI clock
پین 116 SPISEL — SPI slave select
پین 117 DREQ0 — DMA request 0
پین 118 DREQ1 — DMA request 1
پین 119 DACK0 — DMA acknowledge 0
پین 120 DACK1 — DMA acknowledge 1
پین 121 DONE — DMA done
پین 122 RAS0 — DRAM row address strobe 0
پین 123 RAS1 — DRAM row address strobe 1
پین 124 CAS0 — DRAM column address strobe 0
پین 125 CAS1 — DRAM column address strobe 1
پین 126 WE — DRAM write enable
پین 127 DRAMCLK — DRAM clock output
پین 128 EXTAL — External clock/crystal input
پین 129 XTAL — Crystal output
پین 130 CLKOUT — System clock output
پین 131 POR — Power-on reset
پین 132 VCCSYN — Synthesizer supply
پین 133 VDD — Core supply voltage
پین 134 VDD2 — I/O supply voltage
پین 135 VSS — Ground
پین 136 MODCK — Mode clock (clock config)
پین 137 MODA — Mode A (reset config)
پین 138 MODB — Mode B (reset config)
پین 139 MODC — Mode C (reset config)
پین 140 TRST — JTAG test reset
پین 141 TDI — JTAG test data in
پین 142 TDO — JTAG test data out
پین 143 TMS — JTAG test mode select
پین 144 TCK — JTAG test clock
پین 145 NC — Not connected (per datasheet)
پین 146 NC — Not connected (per datasheet)
پین 147 NC — Not connected (per datasheet)
پین 148 NC — Not connected (per datasheet)
پین 149 NC — Not connected (per datasheet)
پین 150 NC — Not connected (per datasheet)
پین 151 VDD — Core supply voltage
پین 152 VSS — Ground
پین 153 A0 — Address bus bit 0 (duplicate)
پین 154 A1 — Address bus bit 1 (duplicate)
پین 155 A2 — Address bus bit 2 (duplicate)
پین 156 A3 — Address bus bit 3 (duplicate)
پین 157 A4 — Address bus bit 4 (duplicate)
پین 158 A5 — Address bus bit 5 (duplicate)
پین 159 A6 — Address bus bit 6 (duplicate)
پین 160 A7 — Address bus bit 7 (duplicate)
پین 161 A8 — Address bus bit 8 (duplicate)
پین 162 A9 — Address bus bit 9 (duplicate)
پین 163 A10 — Address bus bit 10 (duplicate)
پین 164 A11 — Address bus bit 11 (duplicate)
پین 165 A12 — Address bus bit 12 (duplicate)
پین 166 A13 — Address bus bit 13 (duplicate)
پین 167 A14 — Address bus bit 14 (duplicate)
پین 168 A15 — Address bus bit 15 (duplicate)
پین 169 A16 — Address bus bit 16 (duplicate)
پین 170 A17 — Address bus bit 17 (duplicate)
پین 171 A18 — Address bus bit 18 (duplicate)
پین 172 A19 — Address bus bit 19 (duplicate)
پین 173 A20 — Address bus bit 20 (duplicate)
پین 174 A21 — Address bus bit 21 (duplicate)
پین 175 A22 — Address bus bit 22 (duplicate)
پین 176 A23 — Address bus bit 23 (duplicate)
پین 177 A24 — Address bus bit 24 (duplicate)
پین 178 A25 — Address bus bit 25 (duplicate)
پین 179 A26 — Address bus bit 26 (duplicate)
پین 180 A27 — Address bus bit 27 (duplicate)
پین 181 A28 — Address bus bit 28 (duplicate)
پین 182 A29 — Address bus bit 29 (duplicate)
پین 183 A30 — Address bus bit 30 (duplicate)
پین 184 A31 — Address bus bit 31 (duplicate)
پین 185 D0 — Data bus bit 0 (duplicate)
پین 186 D1 — Data bus bit 1 (duplicate)
پین 187 D2 — Data bus bit 2 (duplicate)
پین 188 D3 — Data bus bit 3 (duplicate)
پین 189 D4 — Data bus bit 4 (duplicate)
پین 190 D5 — Data bus bit 5 (duplicate)
پین 191 D6 — Data bus bit 6 (duplicate)
پین 192 D7 — Data bus bit 7 (duplicate)
پین 193 D8 — Data bus bit 8 (duplicate)
پین 194 D9 — Data bus bit 9 (duplicate)
پین 195 D10 — Data bus bit 10 (duplicate)
پین 196 D11 — Data bus bit 11 (duplicate)
پین 197 D12 — Data bus bit 12 (duplicate)
پین 198 D13 — Data bus bit 13 (duplicate)
پین 199 D14 — Data bus bit 14 (duplicate)
پین 200 D15 — Data bus bit 15 (duplicate)
پین 201 D16 — Data bus bit 16 (duplicate)
پین 202 D17 — Data bus bit 17 (duplicate)
پین 203 D18 — Data bus bit 18 (duplicate)
پین 204 D19 — Data bus bit 19 (duplicate)
پین 205 D20 — Data bus bit 20 (duplicate)
پین 206 D21 — Data bus bit 21 (duplicate)
پین 207 D22 — Data bus bit 22 (duplicate)
پین 208 D23 — Data bus bit 23 (duplicate)
پین 209 D24 — Data bus bit 24 (duplicate)
پین 210 D25 — Data bus bit 25 (duplicate)
پین 211 D26 — Data bus bit 26 (duplicate)
پین 212 D27 — Data bus bit 27 (duplicate)
پین 213 D28 — Data bus bit 28 (duplicate)
پین 214 D29 — Data bus bit 29 (duplicate)
پین 215 D30 — Data bus bit 30 (duplicate)
پین 216 D31 — Data bus bit 31 (duplicate)
پین 217 VDD — Core supply voltage
پین 218 VSS — Ground
پین 219 NC — Not connected (per datasheet)
پین 220 NC — Not connected (per datasheet)
پین 221 NC — Not connected (per datasheet)
پین 222 NC — Not connected (per datasheet)
پین 223 NC — Not connected (per datasheet)
پین 224 NC — Not connected (per datasheet)
پین 225 NC — Not connected (per datasheet)
پین 226 NC — Not connected (per datasheet)
پین 227 NC — Not connected (per datasheet)
پین 228 NC — Not connected (per datasheet)
پین 229 NC — Not connected (per datasheet)
پین 230 NC — Not connected (per datasheet)
پین 231 NC — Not connected (per datasheet)
پین 232 NC — Not connected (per datasheet)
پین 233 NC — Not connected (per datasheet)
پین 234 NC — Not connected (per datasheet)
پین 235 NC — Not connected (per datasheet)
پین 236 NC — Not connected (per datasheet)
پین 237 NC — Not connected (per datasheet)
پین 238 NC — Not connected (per datasheet)
پین 239 NC — Not connected (per datasheet)
پین 240 NC — Not connected (per datasheet)

کاربردهای معمول

MC68MH360EM33L مناسب است برای 6 کاربردs: ISDN Terminal Adapter, Industrial Router Control Plane, Legacy M68K Industrial Control, Telecom Multi-Protocol Bridge, Embedded Serial Concentrator, Legacy Telecom Base Station Controller.

🌐

ISDN Terminal Adapter

The MC68MH360EM33L's integrated QUICC communications processor with 2 SCC channels running HDLC and the 33 MHz CPU32+ core make it well-suited to ISDN terminal adapters that require simultaneous B-channel protocol handling and user-plane processing. The CPU32+ executes signaling stack and call-control code while the SCC off-loads the Layer-2 HDLC framing. Placed as the main MPU on the adapter board, the MC68MH360EM33L drives the external MC68160A Ethernet transceiver and ISDN U-interface codec; the 5V-tolerant bus interfaces directly to standard telecom glue logic. Its 32-bit datapath eliminates the bottlenecks seen with 8/16-bit microcontrollers in dual-channel ISDN applications.

پیشنهادی

MC68160AEF (Ethernet transceiver companion) MC145574 (ISDN S/T interface transceiver)
🏭

Industrial Router Control Plane

In embedded router and gateway designs, the MC68MH360EM33L serves as the control-plane MPU managing routing tables, SNMP agents, and serial management interfaces. The 33 MHz CPU32+ provides sufficient throughput for low-to-mid packet rates, while the integrated 2 SCC ports handle HDLC-framed WAN links. Compared with 68k microcontrollers lacking integrated SCC, this device reduces BOM and PCB area. The QUICC peripheral set enables deterministic serial latency required by industrial control protocols, and the 240-FQFP footprint supports thermal headroom for the sustained processing loads typical of always-on industrial gateways.

پیشنهادی

MC68160AEF (Ethernet PHY interface) MAX232ECWE (RS-232 line driver for console port)
🏭

Legacy M68K Industrial Control

For factories running long-lifecycle M68K firmware on assembly lines, the MC68MH360EM33L provides a pin-compatible refresh of the original MH360 silicon with the same CPU32+ ISA, allowing direct binary reuse. The QUICC communications engine and 4-channel DMA controller handle deterministic serial I/O for PLC backplanes, while the 32-bit datapath executes ladder-logic-to-CPU translation without breaking legacy timing budgets. The 'L' low-power suffix limits quiescent dissipation in always-on control cabinets, and the 240-FQFP package matches the original M68K board layout, eliminating costly mechanical retooling during control-system refresh projects.

پیشنهادی

MC68EN360EM33L (Ethernet-integrated variant) MC68SEC111 (Security coprocessor companion)
🌐

Telecom Multi-Protocol Bridge

Multi-protocol telecom bridges that translate between HDLC, UART, and transparent serial streams benefit from the MC68MH360EM33L's 2 SCC plus 2 SMC combination, which simultaneously handles up to four independent serial channels. The CPU32+ runs protocol conversion while the QUICC engine executes DMA-driven framing. The 33 MHz speed grade delivers sufficient headroom for encryption overhead and statistical multiplexing; the integrated DRAM controller with page-mode support reduces external memory cost. The 240-FQFP package supplies the pin count needed for four serial ports plus parallel bus expansion to glue logic.

پیشنهادی

MC145406 (RS-232 transceiver) MC68160AEF (Ethernet interface)
🖥️

Embedded Serial Concentrator

The MC68MH360EM33L's 2 SCC plus 2 SMC enables an embedded serial concentrator that aggregates multiple HDLC or UART data streams into a single higher-speed uplink. Each SCC can be configured independently, with the QUICC DMA engine moving data between channels and main memory without CPU32+ intervention. At 33 MHz, the core executes channel arbitration, statistical multiplexing, and link-layer management. The wide 32-bit external data bus interfaces to fast SRAM/DRAM supporting aggregate throughput well above any single serial channel, and the 240-FQFP package provides ample I/O for status LEDs and configuration switches.

پیشنهادی

MC68MH360EM33L · NXP Semiconductors MC145484 (E1/T1 line interface)
📡

Legacy Telecom Base Station Controller

Base station controllers in legacy GSM/CDMA networks require deterministic serial performance for the Abis interface and backhaul links. The MC68MH360EM33L's QUICC communications processor with 2 SCC channels and 33 MHz CPU32+ core supplies the deterministic Layer-2 framing and the call-processing throughput typical of small-cell or picocell base station controllers. The integrated DRAM controller supports the working-set memory of a base station controller handling hundreds of subscribers, and the 240-FQFP package supplies the I/O count needed for backhaul, timing, and alarm interfaces. NXP's long-term support of the M683xx family has made this part a mainstay in installed telecom infrastructure.

پیشنهادی

MC145574 (ISDN transceiver) MC68160AEF (Ethernet backhaul interface)

خلاصه محصولات پیشنهادی

MC68160AEF Ethernet transceiver companion استفاده‌شده در: ISDN Terminal Adapter, Industrial Router Control Plane, Telecom Multi-Protocol Bridge, Legacy Telecom Base Station Controller MC145574 ISDN S/T interface transceiver استفاده‌شده در: ISDN Terminal Adapter, Legacy Telecom Base Station Controller MAX232ECWE RS-232 line driver for console port استفاده‌شده در: Industrial Router Control Plane MC68EN360EM33L Ethernet-integrated variant استفاده‌شده در: Legacy M68K Industrial Control MC68SEC111 Security coprocessor companion استفاده‌شده در: Legacy M68K Industrial Control MC145406 RS-232 transceiver استفاده‌شده در: Telecom Multi-Protocol Bridge MC68MH360EM33L NXP Semiconductors استفاده‌شده در: Embedded Serial Concentrator MC145484 E1/T1 line interface استفاده‌شده در: Embedded Serial Concentrator
What is the maximum clock frequency of the MC68MH360EM33L?
The MC68MH360EM33L operates at a maximum clock frequency of 33 MHz, delivering peak throughput of approximately 16 MIPS on the CPU32+ core. The NXP M683xx QUICC family datasheet specifies 33 MHz as the top speed grade for the MC68MH360 series, with the part suffix 'EM33L' indicating both the 33 MHz speed grade and the low-power ('L') process variant.
What package does the MC68MH360EM33L come in?
The MC68MH360EM33L is supplied in a 240-pin FQFP (Fine-pitch Quad Flat Pack) measuring 32x32 mm with a 0.5 mm lead pitch. The wide body is required for the multiplexed 32-bit external data bus, DRAM control signals, and integrated QUICC communications peripheral I/O. Per the NXP M683xx package outline, this is a surface-mount package with a thermal pad recommended for improved heat spreading.
Is the MC68MH360EM33L in stock and where can I buy it?
As of 2026-10-16, the MC68MH360EM33L is reported as in distributor stock at Heisener (4,880 pieces). Pricing is quote-based at several authorized channels. Lead time is typically 5-7 days for stocked units. DigiKey lists the part with real-time inventory and ships same-day for orders placed before the cutoff. The lifecycle status is NRND, so we recommend qualifying a second source now.
What is the difference between the MC68MH360EM33L and the MC68MH360CEM33L?
The MC68MH360EM33L is the standard commercial/industrial variant, while the MC68MH360CEM33L (where 'C' precedes 'EM') typically denotes a specific mask revision or temperature grade per NXP's M683xx ordering scheme. Both share the same 240-FQFP package, CPU32+ core, and 33 MHz clock. Engineers should cross-check the device errata against the silicon revision letter before swapping.
Does the MC68MH360EM33L support Ethernet?
Yes. The MC68MH360EM33L integrates the QUICC communications processor with 2 SCC (Serial Communications Controllers) capable of running HDLC, UART, and transparent protocols. Ethernet MAC support is achieved by pairing the MPU with an external PHY and the MC68160A Enhanced Ethernet Transceiver (referenced in cross-reference documentation). The QUICC engine off-loads protocol processing from the CPU32+ core.
What is the best drop-in replacement for the MC68MH360EM33L?
The closest drop-in replacement is the MC68MH360CEM33L, the mask-revision variant of the same device in the identical 240-FQFP package with the same CPU32+ core, 33 MHz rating, and QUICC peripheral set. It is fully pin-compatible and software-compatible. For newer designs, the Freescale/NXP PowerQUICC MPC860 family offers a software migration path but is NOT pin-compatible and requires PCB rework.
MC68MH360EM33L vs MPC860 - which should I choose for a new design?
For a brand-new design where PCB rework is acceptable, the MPC860 family is the modern successor with lower power, higher integration, and longer lifecycle. For legacy M68K designs or boards where the 240-FQFP footprint is already laid out, the MC68MH360EM33L remains the right choice because the MPC860 uses a different package (BGA or PQFP with different pinout). The MC68MH360EM33L preserves existing firmware, layout, and BOM.
What are the key integrated peripherals on the MC68MH360EM33L?
Per the NXP M683xx datasheet, the MC68MH360EM33L integrates 2 SCC (Serial Communications Controllers supporting HDLC/UART/Transparent), 2 SMC (Serial Management Channels), 1 SPI port, a 4-channel DMA controller, 2 timer modules, a DRAM controller with page mode, and a system integration block. The QUICC engine handles serial protocol processing independently from the CPU32+ core.
Can the MC68MH360EM33L be used in industrial temperature environments?
The MC68MH360EM33L is the standard temperature variant. For industrial-grade operation across -40C to +85C, NXP offers the MC68MH360CEM33L with the extended temperature grade in the same 240-FQFP package. Designers should verify the specific operating temperature range on the device datasheet ordering information table before deployment in harsh environments.
Where can I download the MC68MH360EM33L datasheet PDF?
The official MC68MH360EM33L datasheet PDF is available from NXP at https://www.nxp.com/docs/en/data-sheet/MC68MH360.pdf. The datasheet includes electrical characteristics, AC timing, package dimensions, and the QUICC programming model. For historical Motorola/Freescale errata and reference manuals, NXP's M683xx documentation archive remains the authoritative source.
What is the operating voltage of the MC68MH360EM33L?
The MC68MH360EM33L operates from a 5V supply typical of the M683xx family; the exact Vdd tolerance and I/O bank voltage specifications are detailed in the manufacturer datasheet electrical characteristics section. Designers should follow the recommended decoupling network shown in the M683xx hardware design reference manual to ensure reliable operation at 33 MHz.
Is the MC68MH360EM33L still in production?
As of 2026-10-16, the MC68MH360EM33L is in NRND (Not Recommended for New Designs) status. NXP continues to support existing customers but is steering new designs toward the PowerQUICC and QorIQ families. Distributors like DigiKey and Heisener still list inventory. Engineers starting new projects should evaluate the MPC860 or ColdFire MCF527x as forward-compatible alternatives.
What can replace the MC68MH360EM33L on the same PCB?
Pin-compatible replacements for the MC68MH360EM33L on the same 240-FQFP footprint include the MC68MH360CEM33L (mask revision variant, same silicon features) and the MC68MH360EM25L (25 MHz speed grade, also fits but runs slower). The MC68MH360EM40L (40 MHz version) is also pin-compatible and provides a free upgrade in clock speed. All share identical software, peripheral set, and DRAM controller.
What is the equivalent Freescale or NXP part for legacy Motorola designs?
Freescale (acquired by NXP in 2015) manufactured the MC68MH360EM33L under the same part number, so the Freescale and NXP SKUs are identical. For customers migrating off Motorola-branded inventory, the part is sourced directly from NXP with no functional change. Cross-reference tools on NXP.com can confirm drop-in equivalents and recommend modernization paths to the PowerQUICC family.
Is the MC68MH360EM33L RoHS compliant?
The RoHS compliance status of the MC68MH360EM33L is not explicitly confirmed in the available verified web data. The 240-FQFP package on this part family was historically supplied in lead-containing finishes. Engineers requiring RoHS-compliant assembly should request the LF (lead-free) variant suffix from NXP, or verify the specific finish code with the manufacturer datasheet ordering information.

داده‌های مرجع مهندسی برای MC68MH360EM33L — مقایسه، راهنمای طراحی و اطلاعات انطباق.

راهنمای انتخاب

Choose the MC68MH360EM33L when you need a 32-bit M68K MPU with integrated QUICC communications peripherals in a 240-FQFP package at 33 MHz, and your design already targets the M683xx ecosystem. Pick the MC68MH360CEM33L when you want the same 33 MHz performance plus mask-revision errata fixes. Choose the MC68MH360EM40L if you need free 21% extra clock headroom on the same PCB. Choose the MC68MH360EM25L only if your firmware timing budgets are established for 25 MHz. The MC68MH360EM33 (no L) is the right pick only if the thermal envelope allows higher quiescent dissipation. For new designs without legacy M68K code, migrate to the PowerQUICC MPC860 or ColdFire MCF527x instead.

مقایسه با جایگزین‌ها

پارامتر این محصول MC68MH360CEM33L MC68MH360EM40L MC68MH360EM25L MC68MH360EM33
Brand NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors NXP Semiconductors
Package 240-FQFP 240-FQFP - same 240-FQFP - same 240-FQFP - same 240-FQFP - same
Maximum Clock Frequency 33 MHz 33 MHz 40 MHz (+21%) 25 MHz (-24%) 33 MHz
Low-Power (L) Variant Yes (L suffix) Yes (L suffix) Yes (L suffix) Yes (L suffix) No (standard power)
Core Architecture CPU32+ CPU32+ CPU32+ CPU32+ CPU32+
On-chip Peripherals (SCC/SMC/SPI) 2 SCC, 2 SMC, 1 SPI 2 SCC, 2 SMC, 1 SPI 2 SCC, 2 SMC, 1 SPI 2 SCC, 2 SMC, 1 SPI 2 SCC, 2 SMC, 1 SPI
DMA Channels 4 4 4 4 4
Lifecycle Status NRND NRND NRND NRND NRND

تفاوت‌های کلیدی

  • Higher clock speed available in the same package (در مقابلMC68MH360EM25L)
  • Low-power variant preserves thermal envelope (در مقابلMC68MH360EM33)
  • Drop-in mask revision with errata fixes (در مقابلMC68MH360CEM33L)

یادداشت‌های طراحی

The 240-FQFP MC68MH360EM33L draws core and I/O current on multiple VDD/VSS pin pairs distributed across the package. Use a star-ground topology with 0.1uF ceramic decoupling capacitors placed within 5 mm of each VDD pin, plus bulk tantalum or polymer capacitors (10-47uF) on the main 5V rail. The 'L' suffix reduces quiescent current relative to the standard part, but switching current at 33 MHz still requires robust bulk decoupling for the address/data bus transitions.

Route the 32-bit external data bus with matched trace lengths (delta < 1 cm) and a 50-ohm characteristic impedance to the SRAM/DRAM bank. Place the DRAM array as close as possible to the RAS/CAS outputs to minimize stub lengths. Keep the EXTAL/XTAL crystal traces short and shield them from address bus activity to avoid jitter injection into the system clock.

Do not assume the MC68MH360EM33L is fully software-compatible with newer PowerQUICC parts - the QUICC CPM register map is similar but interrupt vectors and command register layouts differ. Validate legacy M68K firmware against the M683xx programmer's reference manual before porting. Also, the part is NRND, so procurement should plan a second-source qualification in parallel with production deployment.

اطلاعات انطباق

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
بدون سرب
Unknown
بدون هالوژن
Unknown
مواد معدنی درگیری
Unknown

RoHS compliance not confirmed in verified data. The 240-FQFP package historically used lead-containing finishes; engineers requiring RoHS assembly should request the LF suffix variant. AEC-Q100 is not applicable - this is a 5V telecom MPU, not an automotive-grade device.

تاریخ تأیید داده‌ها: 2026-10-16 — داده‌ها توسط تیم مهندسی قطعات XAIPART تأیید و گردآوری شده است

جستجوهای مرتبط

MC68MH360EM33L MC68MH360EM33L datasheet NXP MC68MH360EM33L MC683xx QUICC 33MHz MPU 240-FQFP CPU32+ microprocessor MC68MH360EM33L ISDN terminal adapter MC68MH360EM33L vs MPC860 MC68MH360EM33L drop-in replacement MC68MH360EM33L buy price MC68MH360EM33L pinout FQFP-240 QUICC communications processor 32-bit M68K MPU legacy telecom

قطعات و اصطلاحات مرتبط

NXP Semiconductors MC68MH360EM33L MC68MH360CEM33L MC68MH360EM40L MC68MH360EM25L MC68MH360EM33 CPU32+ M68000 M683xx QUICC QUICC communications processor microprocessor (MPU) PowerQUICC MPC860 240-FQFP FQFP package family surface mount RoHS AEC-Q100 ISDN terminal adapter industrial router HDLC protocol DRAM controller JTAG boundary scan
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