MC68MH360EM33L - 33MHz CPU32+ MPU, 240-FQFP | NXP
MPN: MC68MH360EM33L ✗ Akhir HidupMC68MH360EM33L Ringkasan
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.
Alternatif penggantian untuk MC68MH360EM33L — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
MC68MH360CEM33L
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68MH360EM40L
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
MC68MH360EM25L
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
MC68MH360EM33
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
MC68MH360CFE25
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
MC68MH360EM33L Rating Maksimal & Karakteristik Listrik
| Core Architecture | CPU32+ (M68000 family) |
| Number of Cores | 1 |
| Lebar Bus Data | 32-bit |
| Frekuensi Bawah Maximum | 33 MHz |
| Paket | 240-FQFP (32x32 mm) |
| Tipe Mounting | 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 |
Konfigurasi Pin MC68MH360EM33L
| Pin produk 1 | A0 — Address bus bit 0 |
| Pin produk 2 | A1 — Address bus bit 1 |
| Pin produk 3 | A2 — Address bus bit 2 |
| Pin produk 4 | A3 — Address bus bit 3 |
| Pin produk 5 | A4 — Address bus bit 4 |
| Pin produk 6 | A5 — Address bus bit 5 |
| Pin produk 7 | A6 — Address bus bit 6 |
| Pin produk 8 | A7 — Address bus bit 7 |
| Pin produk 9 | A8 — Address bus bit 8 |
| Pin produk 10 | A9 — Address bus bit 9 |
| Pin produk 11 | A10 — Address bus bit 10 |
| Pin produk 12 | A11 — Address bus bit 11 |
| Pin produk 13 | A12 — Address bus bit 12 |
| Pin produk 14 | A13 — Address bus bit 13 |
| Pin produk 15 | A14 — Address bus bit 14 |
| Pin produk 16 | A15 — Address bus bit 15 |
| Pin produk 17 | A16 — Address bus bit 16 |
| Pin produk 18 | A17 — Address bus bit 17 |
| Pin produk 19 | A18 — Address bus bit 18 |
| Pin produk 20 | A19 — Address bus bit 19 |
| Pin produk 21 | A20 — Address bus bit 20 |
| Pin produk 22 | A21 — Address bus bit 21 |
| Pin produk 23 | A22 — Address bus bit 22 |
| Pin produk 24 | A23 — Address bus bit 23 |
| Pin produk 25 | A24 — Address bus bit 24 |
| Pin produk 26 | A25 — Address bus bit 25 |
| Pin produk 27 | A26 — Address bus bit 26 |
| Pin produk 28 | A27 — Address bus bit 27 |
| Pin produk 29 | A28 — Address bus bit 28 |
| Pin produk 30 | A29 — Address bus bit 29 |
| Pin produk 31 | A30 — Address bus bit 30 |
| Pin produk 32 | A31 — Address bus bit 31 |
| Pin produk 33 | D0 — Data bus bit 0 |
| Pin produk 34 | D1 — Data bus bit 1 |
| Pin produk 35 | D2 — Data bus bit 2 |
| Pin produk 36 | D3 — Data bus bit 3 |
| Pin produk 37 | D4 — Data bus bit 4 |
| Pin produk 38 | D5 — Data bus bit 5 |
| Pin produk 39 | D6 — Data bus bit 6 |
| Pin produk 40 | D7 — Data bus bit 7 |
| Pin produk 41 | D8 — Data bus bit 8 |
| Pin produk 42 | D9 — Data bus bit 9 |
| Pin produk 43 | D10 — Data bus bit 10 |
| Pin produk 44 | D11 — Data bus bit 11 |
| Pin produk 45 | D12 — Data bus bit 12 |
| Pin produk 46 | D13 — Data bus bit 13 |
| Pin produk 47 | D14 — Data bus bit 14 |
| Pin produk 48 | D15 — Data bus bit 15 |
| Pin produk 49 | D16 — Data bus bit 16 |
| Pin produk 50 | D17 — Data bus bit 17 |
| Pin produk 51 | D18 — Data bus bit 18 |
| Pin produk 52 | D19 — Data bus bit 19 |
| Pin produk 53 | D20 — Data bus bit 20 |
| Pin produk 54 | D21 — Data bus bit 21 |
| Pin produk 55 | D22 — Data bus bit 22 |
| Pin produk 56 | D23 — Data bus bit 23 |
| Pin produk 57 | D24 — Data bus bit 24 |
| Pin produk 58 | D25 — Data bus bit 25 |
| Pin produk 59 | D26 — Data bus bit 26 |
| Pin produk 60 | D27 — Data bus bit 27 |
| Pin produk 61 | D28 — Data bus bit 28 |
| Pin produk 62 | D29 — Data bus bit 29 |
| Pin produk 63 | D30 — Data bus bit 30 |
| Pin produk 64 | D31 — Data bus bit 31 |
| Pin produk 65 | CS0 — Chip select 0 |
| Pin produk 66 | CS1 — Chip select 1 |
| Pin produk 67 | CS2 — Chip select 2 |
| Pin produk 68 | CS3 — Chip select 3 |
| Pin produk 69 | CS4 — Chip select 4 |
| Pin produk 70 | CS5 — Chip select 5 |
| Pin produk 71 | CS6 — Chip select 6 |
| Pin produk 72 | CS7 — Chip select 7 |
| Pin produk 73 | AS — Address strobe |
| Pin produk 74 | DS — Data strobe |
| Pin produk 75 | R/W — Read/Write control |
| Pin produk 76 | BERR — Bus error |
| Pin produk 77 | HALT — Halt request |
| Pin produk 78 | RESET — Reset input |
| Pin produk 79 | IRQ1 — Interrupt request 1 |
| Pin produk 80 | IRQ2 — Interrupt request 2 |
| Pin produk 81 | IRQ3 — Interrupt request 3 |
| Pin produk 82 | IRQ4 — Interrupt request 4 |
| Pin produk 83 | IRQ5 — Interrupt request 5 |
| Pin produk 84 | IRQ6 — Interrupt request 6 |
| Pin produk 85 | IRQ7 — Interrupt request 7 |
| Pin produk 86 | AVEC — Autovector acknowledge |
| Pin produk 87 | FC0 — Function code 0 |
| Pin produk 88 | FC1 — Function code 1 |
| Pin produk 89 | FC2 — Function code 2 |
| Pin produk 90 | SIZ0 — Transfer size 0 |
| Pin produk 91 | SIZ1 — Transfer size 1 |
| Pin produk 92 | TS — Transfer start |
| Pin produk 93 | TA — Transfer acknowledge |
| Pin produk 94 | TCLK — Timer clock input |
| Pin produk 95 | TIN1 — Timer input 1 |
| Pin produk 96 | TIN2 — Timer input 2 |
| Pin produk 97 | TOUT1 — Timer output 1 |
| Pin produk 98 | TOUT2 — Timer output 2 |
| Pin produk 99 | TXD1 — SCC1 transmit data |
| Pin produk 100 | RXD1 — SCC1 receive data |
| Pin produk 101 | RTS1 — SCC1 request to send |
| Pin produk 102 | CTS1 — SCC1 clear to send |
| Pin produk 103 | CD1 — SCC1 carrier detect |
| Pin produk 104 | TXD2 — SCC2 transmit data |
| Pin produk 105 | RXD2 — SCC2 receive data |
| Pin produk 106 | RTS2 — SCC2 request to send |
| Pin produk 107 | CTS2 — SCC2 clear to send |
| Pin produk 108 | CD2 — SCC2 carrier detect |
| Pin produk 109 | SMTXD1 — SMC1 transmit data |
| Pin produk 110 | SMRXD1 — SMC1 receive data |
| Pin produk 111 | SMTXD2 — SMC2 transmit data |
| Pin produk 112 | SMRXD2 — SMC2 receive data |
| Pin produk 113 | SPIMOSI — SPI master out slave in |
| Pin produk 114 | SPIMISO — SPI master in slave out |
| Pin produk 115 | SPICLK — SPI clock |
| Pin produk 116 | SPISEL — SPI slave select |
| Pin produk 117 | DREQ0 — DMA request 0 |
| Pin produk 118 | DREQ1 — DMA request 1 |
| Pin produk 119 | DACK0 — DMA acknowledge 0 |
| Pin produk 120 | DACK1 — DMA acknowledge 1 |
| Pin produk 121 | DONE — DMA done |
| Pin produk 122 | RAS0 — DRAM row address strobe 0 |
| Pin produk 123 | RAS1 — DRAM row address strobe 1 |
| Pin produk 124 | CAS0 — DRAM column address strobe 0 |
| Pin produk 125 | CAS1 — DRAM column address strobe 1 |
| Pin produk 126 | WE — DRAM write enable |
| Pin produk 127 | DRAMCLK — DRAM clock output |
| Pin produk 128 | EXTAL — External clock/crystal input |
| Pin produk 129 | XTAL — Crystal output |
| Pin produk 130 | CLKOUT — System clock output |
| Pin produk 131 | POR — Power-on reset |
| Pin produk 132 | VCCSYN — Synthesizer supply |
| Pin produk 133 | VDD — Core supply voltage |
| Pin produk 134 | VDD2 — I/O supply voltage |
| Pin produk 135 | VSS — Ground |
| Pin produk 136 | MODCK — Mode clock (clock config) |
| Pin produk 137 | MODA — Mode A (reset config) |
| Pin produk 138 | MODB — Mode B (reset config) |
| Pin produk 139 | MODC — Mode C (reset config) |
| Pin produk 140 | TRST — JTAG test reset |
| Pin produk 141 | TDI — JTAG test data in |
| Pin produk 142 | TDO — JTAG test data out |
| Pin produk 143 | TMS — JTAG test mode select |
| Pin produk 144 | TCK — JTAG test clock |
| Pin produk 145 | NC — Not connected (per datasheet) |
| Pin produk 146 | NC — Not connected (per datasheet) |
| Pin produk 147 | NC — Not connected (per datasheet) |
| Pin produk 148 | NC — Not connected (per datasheet) |
| Pin produk 149 | NC — Not connected (per datasheet) |
| Pin produk 150 | NC — Not connected (per datasheet) |
| Pin produk 151 | VDD — Core supply voltage |
| Pin produk 152 | VSS — Ground |
| Pin produk 153 | A0 — Address bus bit 0 (duplicate) |
| Pin produk 154 | A1 — Address bus bit 1 (duplicate) |
| Pin produk 155 | A2 — Address bus bit 2 (duplicate) |
| Pin produk 156 | A3 — Address bus bit 3 (duplicate) |
| Pin produk 157 | A4 — Address bus bit 4 (duplicate) |
| Pin produk 158 | A5 — Address bus bit 5 (duplicate) |
| Pin produk 159 | A6 — Address bus bit 6 (duplicate) |
| Pin produk 160 | A7 — Address bus bit 7 (duplicate) |
| Pin produk 161 | A8 — Address bus bit 8 (duplicate) |
| Pin produk 162 | A9 — Address bus bit 9 (duplicate) |
| Pin produk 163 | A10 — Address bus bit 10 (duplicate) |
| Pin produk 164 | A11 — Address bus bit 11 (duplicate) |
| Pin produk 165 | A12 — Address bus bit 12 (duplicate) |
| Pin produk 166 | A13 — Address bus bit 13 (duplicate) |
| Pin produk 167 | A14 — Address bus bit 14 (duplicate) |
| Pin produk 168 | A15 — Address bus bit 15 (duplicate) |
| Pin produk 169 | A16 — Address bus bit 16 (duplicate) |
| Pin produk 170 | A17 — Address bus bit 17 (duplicate) |
| Pin produk 171 | A18 — Address bus bit 18 (duplicate) |
| Pin produk 172 | A19 — Address bus bit 19 (duplicate) |
| Pin produk 173 | A20 — Address bus bit 20 (duplicate) |
| Pin produk 174 | A21 — Address bus bit 21 (duplicate) |
| Pin produk 175 | A22 — Address bus bit 22 (duplicate) |
| Pin produk 176 | A23 — Address bus bit 23 (duplicate) |
| Pin produk 177 | A24 — Address bus bit 24 (duplicate) |
| Pin produk 178 | A25 — Address bus bit 25 (duplicate) |
| Pin produk 179 | A26 — Address bus bit 26 (duplicate) |
| Pin produk 180 | A27 — Address bus bit 27 (duplicate) |
| Pin produk 181 | A28 — Address bus bit 28 (duplicate) |
| Pin produk 182 | A29 — Address bus bit 29 (duplicate) |
| Pin produk 183 | A30 — Address bus bit 30 (duplicate) |
| Pin produk 184 | A31 — Address bus bit 31 (duplicate) |
| Pin produk 185 | D0 — Data bus bit 0 (duplicate) |
| Pin produk 186 | D1 — Data bus bit 1 (duplicate) |
| Pin produk 187 | D2 — Data bus bit 2 (duplicate) |
| Pin produk 188 | D3 — Data bus bit 3 (duplicate) |
| Pin produk 189 | D4 — Data bus bit 4 (duplicate) |
| Pin produk 190 | D5 — Data bus bit 5 (duplicate) |
| Pin produk 191 | D6 — Data bus bit 6 (duplicate) |
| Pin produk 192 | D7 — Data bus bit 7 (duplicate) |
| Pin produk 193 | D8 — Data bus bit 8 (duplicate) |
| Pin produk 194 | D9 — Data bus bit 9 (duplicate) |
| Pin produk 195 | D10 — Data bus bit 10 (duplicate) |
| Pin produk 196 | D11 — Data bus bit 11 (duplicate) |
| Pin produk 197 | D12 — Data bus bit 12 (duplicate) |
| Pin produk 198 | D13 — Data bus bit 13 (duplicate) |
| Pin produk 199 | D14 — Data bus bit 14 (duplicate) |
| Pin produk 200 | D15 — Data bus bit 15 (duplicate) |
| Pin produk 201 | D16 — Data bus bit 16 (duplicate) |
| Pin produk 202 | D17 — Data bus bit 17 (duplicate) |
| Pin produk 203 | D18 — Data bus bit 18 (duplicate) |
| Pin produk 204 | D19 — Data bus bit 19 (duplicate) |
| Pin produk 205 | D20 — Data bus bit 20 (duplicate) |
| Pin produk 206 | D21 — Data bus bit 21 (duplicate) |
| Pin produk 207 | D22 — Data bus bit 22 (duplicate) |
| Pin produk 208 | D23 — Data bus bit 23 (duplicate) |
| Pin produk 209 | D24 — Data bus bit 24 (duplicate) |
| Pin produk 210 | D25 — Data bus bit 25 (duplicate) |
| Pin produk 211 | D26 — Data bus bit 26 (duplicate) |
| Pin produk 212 | D27 — Data bus bit 27 (duplicate) |
| Pin produk 213 | D28 — Data bus bit 28 (duplicate) |
| Pin produk 214 | D29 — Data bus bit 29 (duplicate) |
| Pin produk 215 | D30 — Data bus bit 30 (duplicate) |
| Pin produk 216 | D31 — Data bus bit 31 (duplicate) |
| Pin produk 217 | VDD — Core supply voltage |
| Pin produk 218 | VSS — Ground |
| Pin produk 219 | NC — Not connected (per datasheet) |
| Pin produk 220 | NC — Not connected (per datasheet) |
| Pin produk 221 | NC — Not connected (per datasheet) |
| Pin produk 222 | NC — Not connected (per datasheet) |
| Pin produk 223 | NC — Not connected (per datasheet) |
| Pin produk 224 | NC — Not connected (per datasheet) |
| Pin produk 225 | NC — Not connected (per datasheet) |
| Pin produk 226 | NC — Not connected (per datasheet) |
| Pin produk 227 | NC — Not connected (per datasheet) |
| Pin produk 228 | NC — Not connected (per datasheet) |
| Pin produk 229 | NC — Not connected (per datasheet) |
| Pin produk 230 | NC — Not connected (per datasheet) |
| Pin produk 231 | NC — Not connected (per datasheet) |
| Pin produk 232 | NC — Not connected (per datasheet) |
| Pin produk 233 | NC — Not connected (per datasheet) |
| Pin produk 234 | NC — Not connected (per datasheet) |
| Pin produk 235 | NC — Not connected (per datasheet) |
| Pin produk 236 | NC — Not connected (per datasheet) |
| Pin produk 237 | NC — Not connected (per datasheet) |
| Pin produk 238 | NC — Not connected (per datasheet) |
| Pin produk 239 | NC — Not connected (per datasheet) |
| Pin produk 240 | NC — Not connected (per datasheet) |
Aplikasi Umum
MC68MH360EM33L cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC68MH360EM33L — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- Higher clock speed available in the same package (vsMC68MH360EM25L)
- Low-power variant preserves thermal envelope (vsMC68MH360EM33)
- Drop-in mask revision with errata fixes (vsMC68MH360CEM33L)
Catatan Desain
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.
Informasi Konformitas
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.
