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P87LPC768
General description
The P87LPC768 is a 20-pin single-chip microcontroller designed for low pin count applications demanding high-integration, low cost solutions over a wide range of performance requirements. A member of the Philips low pin count family, the P87LPC768 offers programmable oscillator configurations for high and low speed crystals or RC operation, wide operating voltage range, programmable port output configurations, selectable Schmitt trigger inputs, LED drive outputs, and a built-in watchdog timer. The P87LPC768 is based on an accelerated 80C51 processor architecture that executes instructions at twice the rate of standard 80C51 devices.
Features
- An accelerated 80C51 CPU provides instruction cycle times of 300-600 ns for all instructions except multiply and divide when executing at 20 MHz. Execution at up to 20 MHz when VDD= 4.5 V to 6.0 V, 10 MHz when VDD= 2.7 V to 6.0 V.
- Four-channel 10-bit Pulse Width Modulator
- Four-channel multiplexed 8-bit A/D converter. Conversion time of 9.3uS at fosc= 20 MHz.
- 2.7 V to 6.0 V operating range for digital functions.
- 4 kbytes EPROM code memory.
- 128 byte RAM data memory.
- 32-byte customer code EPROM allows serialization of devices, storage of setup parameters, etc.
- Two 16-bit counter/timers. Each timer may be configured to toggle a port output upon timer overflow.
- Two analog comparators.
- Full duplex UART.
- I²C communication port.
- Eight keypad interrupt inputs, plus two additional external interrupt inputs.
- Four interrupt priority levels.
- Watchdog timer with separate on-chip oscillator, requiring no external components. The watchdog timeout time is selectable from 8 values.
- Active low reset. On-chip power-on reset allows operation with no external reset components.
- Low voltage reset. One of two preset low voltage levels may be selected to allow a graceful system shutdown when power fails. May optionally be configured as an interrupt.
- Oscillator Fail Detect. The watchdog timer has a separate fully on-chip oscillator, allowing it to perform an oscillator fail detect function.
- Configurable on-chip oscillator with frequency range and RC oscillator options (selected by user programmed EPROM bits). The RC oscillator option allows operation with no external oscillator components.
- Programmable port output configuration options: quasi-bidirectional, open drain, push-pull, input-only.
- Selectable Schmitt trigger port inputs.
- LED drive capability (20 mA) on all port pins.
- Controlled slew rate port outputs to reduce EMI. Outputs have approximately 10 ns minimum ramp times.
- 15 I/O pins minimum. Up to 18 I/O pins using on-chip oscillator and reset options.
- Only power and ground connections are required to operate the P87LPC768 when fully on-chip oscillator and reset options are selected.
- Serial EPROM programming allows simple in-circuit production coding. Two EPROM security bits prevent reading of sensitive application programs.
- Idle and Power Down reduced power modes. Improved wakeup from Power Down mode (a low interrupt input starts execution). Typical Power Down current is 1 uA.
- 20-pin DIP and SO packages.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| P87LPC768BD | P87LPC768BD | 9352 673 60512 | Volume production | SOT163-1
(SO20) | Tube Dry Pack | Standard Marking | P87LPC768BD
| week 50, 2004 |
| P87LPC768FD | P87LPC768FD | 9352 674 87512 | Volume production | SOT163-1
(SO20) | Tube Dry Pack | Standard Marking | P87LPC768FD
| week 50, 2004 |
| P87LPC768FN | P87LPC768FN | 9352 674 88112 | Volume production | SOT146-1
(DIP20) | Tube | Standard Marking | P87LPC768FN
| Always Pb-free |
Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| P87LPC768BD | 9352 673 60512 | 2.2000 | NA | DIGI-KEY CORPORATION | 1,270 | 6/29/2008 | Buy online | Order samples |
| P87LPC768FD | 9352 674 87512 | 2.6100 | NA | DIGI-KEY CORPORATION | 919 | 6/29/2008 | Buy online | Order samples |
| P87LPC768FN | 9352 674 88112 | 2.7600 | NA | DIGI-KEY CORPORATION | 1,080 | 6/29/2008 | Buy online | Order samples |
| NA | MOUSER ELECTRONICS | 695 | 7/5/2008 | Buy online | ||||
| NA | AVNET ELECTRONICS MARKETING | 533 | 7/4/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 414 | 7/4/2008 | Buy online | ||||
| NA | ARROW ELECTRONICS | 54 | 7/4/2008 | Buy online |
Applications
Related applications
Digital media adapters
LCD display - discretes focus
PDA - discretes focus
HID
Projector
Intelligent washing machine
Transceiver board
Power amplifier board
Main CPU board
Walkie-talkie - MMS functionality
LCD TV - MMS functionality
Color mixing for RGBA LEDs
Technical documents
Application Notes
AN10289_1;
LPC900 external crystal start-up (27-Apr-04)
AN466_2;
P87LPC76x in-system programming (08-Jul-01)
Support Documents
75011361;
51LPC Microcontrollers & 3 Quadrant Triacs (2003-04-05)
index;
Development Tools for LPC7xx devices (2003-05-21)
philips_i2c_logic_overview;
Interface Products Business Line Specialty Logic Product Line I2C Logic Family Overview (2004-01-01)
li_ion_battery_charger;
Li-ion Battery charger (17-Dec-04)
ES_87LPC768_041702;
P87LPC768 Erratasheet (2002-04-17)
75011115;
P87LPC768 Leaflet (2003-03-07)
75013987;
Philips The Innovation Leader in Microcontrollers LPC2000/LPC900/LPC700 Series and 80C51 Family (2005-01-21)
75016051;
The choice for embedded technologies (2007-07-01)
75015572;
The innovation leader in microcontrollers (2006-09-01)
Parametrics/similar products
| Type number | Package | Power supply | RAM(bytes) | System Freq(MHz) | SPECIAL FEATURES | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P87LPC768BD | SOT163-1
(SO20) | 2.7~6.0 | 128 |
0~10@3V 0~20@5V | 2 Anal. Comp., BOD, POR, 8 KBIs, Int. RC 6MHz | 8-bit 80C51 uController | 4-ch 8-bit | yes | 18 | 0~70 | 2 x 16-bit | 4 | OTP |
UART I2C | 3 | yes | 51LPC family (80C51) | 20 | 6-clk (12-clk opt.) | 4K |
0~20@6-clk 0~20@12-clk | Low |
| P87LPC768FD | SOT163-1
(SO20) | 2.7~6.0 | 128 |
0~10@3V 0~20@5V | 2 Anal. Comp., BOD, POR, 8 KBIs, Int. RC 6MHz | 8-bit 80C51 uController | 4-ch 8-bit | yes | 18 | -40~85 | 2 x 16-bit | 4 | OTP |
UART I2C | 3 | yes | 51LPC family (80C51) | 20 | 6-clk (12-clk opt.) | 4K |
0~20@6-clk 0~20@12-clk | Low |
| P87LPC768FN | SOT146-1
(DIP20) | 2.7~6.0 | 128 |
0~10@3V 0~20@5V | 2 Anal. Comp., BOD, POR, 8 KBIs, Int. RC 6MHz | 8-bit 80C51 uController | 4-ch 8-bit | yes | 18 | -40~85 | 2 x 16-bit | 4 | OTP |
UART I2C | 3 | yes | 51LPC family (80C51) | 20 | 6-clk (12-clk opt.) | 4K |
0~20@6-clk 0~20@12-clk | Low |
Similar products
P87LPC768 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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