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The MPC852T is an "ethernet-only" member of the MPC866 Family. Like the MPC866, the MPC852T is a 0.18 micron version of the PowerQUICC Family and can operate up to a maximum of 100 MHz on the MPC8xx Core with a maximum of 66 MHz external bus. The MPC852T has a 1.8 V core and has a 3.3 V I/O operation with 5 V TTL compatibilty. The MPC852T Integrated Communications Controller is a versatile one-chip integrated microprocessor and peripheral combination that can be used in a variety of controller applications. The MPC852T is ideal for ethernet to ethernet applications such as line card.
The MPC852T is a Power Architecture-based derivative of Freescale Semiconductor's Quad Integrated Communications Controller (PowerQUICC). The CPU on the MPC852T is the MPC8xx core, a 32-bit microprocessor built on Power Architecture technology, incorporating memory management units (MMUs) and instruction and data caches.
View Block DiagramFeatures
Maximum frequency operation of the MPC8xx core is 100 MHz
- Maximum frequency operation of the external bus is 66 MHz in 1:1 mode
- Single-issue, 32-bit core (compatible with Power Architecture technology) with 32, 32-bit general-purpose registers (GPRs)
- Up to 32-bit data bus (dynamic bus sizing for 8, 16, and 32 bits)
- 32 address lines
- Memory controller (eight banks)
- General-purpose timers
- System integration unit (SIU)
- Interrupts
- Communications processor module (CPM)
- Two baud rate generators
- Two SCCs (serial communication controllers) (10BaseT Ethernet, HDLC, Transparent)
- One SMC (serial management channel)
- One SPI (serial peripheral interface)
- Fast Ethernet controller (FEC)
- PCMCIA interface
- Debug interface
- 1.8 V Core and 3.3 V I/O operation with 5-V TTL compatibility
- 256-pin, 23*23 1.27 ball pitch (BGA) package
MPC866 Family Versions and Masks
| Mask | Process | Qual | IMMR [16:31] | Microcode REV_NUM | Part Number | |
| Rev 0.3 | 3L90H | HiP6W | MC | 0x0800 | 0x0003 | MPC866Pnn MPC866Tnn MPC859Tnn MPC859DSLnn MPC852Tnn |
| Rev A.0 | 0L96R | HiP6W | MC | 0x0801 | 0x0004 | MPC866PnnA MPC866TnnA MPC859TnnA MPC859DSLnnA |
Product Specifications
| Co Processor Type | CPM |
| Co Processor Frequency - Max (MHz) | 50, 66, 100, 80 |
| Cache (kByte) | 8, 4 |
| I/O Operating Voltage - Max (V) | 3.3 |
| Bus Interface | PCMCIA |
| Junction Operating Temperature - Max (�C)(Tj) | 95, 100 |
| Power Dissipation - Max (W) | 0.14, 0.18, 0.25, 0.2 |
| Power Dissipation - Typ (W) | 0.11, 0.15, 0.21, 0.17 |
