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80C31/80C32
General description
The Philips 80C31/32 is a high-performance static 80C51 design fabricated with Philips high-density CMOS technology with operation from 2.7 V to 5.5 V.
The 80C31/32 ROMless devices contain a 128 ? 8 RAM/256 ? 8 RAM, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART, and on-chip oscillator and clock circuits.
In addition, the device is a low power static design which offers a wide range of operating frequencies down to zero. Two software selectable modes of power reduction-idle mode and power-down mode are available. The idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. Since the design is static, the clock can be stopped without loss of user data and then the execution resumed from the point the clock was stopped.
Features
- 8051 Central Processing Unit
- 128 ? 8 RAM (80C31)
- 256 ? 8 RAM (80C32)
- Three 16-bit counter/timers
- Boolean processor
- Full static operation
- Low voltage (2.7 V to 5.5 V@ 16 MHz) operation
- Memory addressing capability
- 64k ROM and 64k RAM
- Power control modes:
- Clock can be stopped and resumed
- Idle mode
- Power-down mode
- CMOS and TTL compatible
- TWO speed ranges at VCC = 5 V
- 0 to 16 MHz
- 0 to 33 MHz
- Three package styles
- Extended temperature ranges
- Dual Data Pointers
- 4 level priority interrupt
- 6 interrupt sources
- Four 8-bit I/O ports
- Full-duplex enhanced UART
- Framing error detection
- Automatic address recognition
- Programmable clock out
- Asynchronous port reset
- Low EMI (inhibit ALE)
- Wake-up from Power Down by an external interrupt
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| P80C31SBAA | P80C31SBAA | 9352 555 50512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | P80C31SBAA
| week 44, 2004 |
| P80C31SBPN | P80C31SBPN | 9352 557 00112 | Volume production | SOT129-1
(DIP40) | Tube | Standard Marking | P80C31SBPN
| Always Pb-free |
| P80C31SFAA | 9352 555 60512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | P80C31SFAA
| week 44, 2004 | |
| P80C32SBAA | P80C32SBAA | 9352 557 70512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | P80C32SBAA
| week 45, 2004 |
| P80C32SBPN | P80C32SBPN | 9352 558 80112 | Volume production | SOT129-1
(DIP40) | Tube | Standard Marking | P80C32SBPN
| Always Pb-free |
| P80C32UBAA | P80C32UBAA | 9352 558 10512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | P80C32UBAA
| week 45, 2004 |
| P80C32UBAA | 9352 558 10518 | Volume production | SOT187-2
(PLCC44) | Reel Dry Pack, SMD, 13" | Standard Marking | P80C32UBAA
| week 45, 2004 | |
| P80C32UFAA | P80C32UFAA | 9352 603 57512 | Volume production | SOT187-2
(PLCC44) | Tube Dry Pack | Standard Marking | P80C32UFAA
| week 45, 2004 |
| P80C32UFAA | 9352 603 57518 | Volume production | SOT187-2
(PLCC44) | Reel Dry Pack, SMD, 13" | Standard Marking | P80C32UFAA
| week 45, 2004 |
Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.
Pricing/ordering/availability
Applications
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Technical documents
Application Notes
AN10289_1;
LPC900 external crystal start-up (27-Apr-04)
Support Documents
li_ion_battery_charger;
Li-ion Battery charger (17-Dec-04)
Parametrics/similar products
| Type number | Package | Power supply | RAM(bytes) | System Freq(MHz) | FUNCTION | ADCs | Watchdog timer | I/O pins | Operating temp.(Cel) | Timers | PWMs | Memory Type | Serial Interfaces | External Interrupt | Program Security | Series | No. of Pins | Clock Type | Memory Size(kBits) | Operating Frequency(MHz) | Reset Active Low or High |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P80C31SBAA | SOT187-2
(PLCC44) | 2.7~5.5 | 128 |
0~16@3V 0~16@5V | 8-bit 80C51 uController | - | no | 32 | 0~70 | 3 x 16-bit | - | ROMless | UART | 2 | no | 80C51 family | 44 | 12-clk | - | 0~16 | High |
| P80C31SBPN | SOT129-1
(DIP40) | 2.7~5.5 | 128 |
0~16@3V 0~16@5V | 8-bit 80C51 uController | - | no | 32 | 0~70 | 3 x 16-bit | - | ROMless | UART | 2 | no | 80C51 family | 40 | 12-clk | - | 0~16 | High |
| P80C31SFAA | SOT187-2
(PLCC44) | 2.7~5.5 | 128 |
0~16@3V 0~16@5V | 8-bit 80C51 uController | - | no | 32 | -40~85 | 3 x 16-bit | - | ROMless | UART | 2 | no | 80C51 family | 44 | 12-clk | - | 0~16 | High |
| P80C32SBAA | SOT187-2
(PLCC44) | 2.7~5.5 | 256 |
0~16@3V 0~16@5V | 8-bit 80C51 uController | - | no | 32 | 0~70 | 3 x 16-bit | - | ROMless | UART | 2 | no | 80C51 family | 44 | 12-clk | - | 0~16 | High |
| P80C32SBPN | SOT129-1
(DIP40) | 2.7~5.5 | 256 |
0~16@3V 0~16@5V | 8-bit 80C51 uController | - | no | 32 | 0~70 | 3 x 16-bit | - | ROMless | UART | 2 | no | 80C51 family | 40 | 12-clk | - | 0~16 | High |
| P80C32UBAA | SOT187-2
(PLCC44) | 4.5~5.5 | 256 | 0~33@5V | 8-bit 80C51 uController | - | no | 32 | 0~70 | 3 x 16-bit | - | ROMless | UART | 2 | no | 80C51 family | 44 | 12-clk | - | 0~33 | High |
| P80C32UFAA | SOT187-2
(PLCC44) | 4.5~5.5 | 256 | 0~33@5V | 8-bit 80C51 uController | - | no | 32 | -40~85 | 3 x 16-bit | - | ROMless | UART | 2 | no | 80C51 family | 44 | 12-clk | - | 0~33 | High |
Similar products
80C31/80C32 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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