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P87LPC762BN 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
87LPC762
Low power, low price, low pin count
(20 pin) microcontroller with 2 kbyte OTP
Preliminary data
Supersedes data of 2001 Apr 04
IC28 Data Handbook
2001 Oct 26
Philips
Semiconductors




P87LPC762BN pdf, 반도체, 판매, 대치품
Philips Semiconductors
Low power, low price, low pin count (20 pin)
microcontroller with 2 kbyte OTP
Preliminary data
87LPC762
GENERAL DESCRIPTION
The 87LPC762 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 87LPC762 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
87LPC762 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
300–600ns 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.
2.7 V to 6.0 V operating range for digital functions.
2 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
87LPC762 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 µA.
20-pin DIP, SO, and TSSOP packages.
ORDERING INFORMATION
Part Number
Temperature Range °C and Package
P87LPC762BN
0 to +70, Plastic Dual In-Line Package
P87LPC762BD
0 to +70, Plastic Small Outline Package
P87LPC762FN
–45 to +85, Plastic Dual In-Line Package
P87LPC762FD
–45 to +85, Plastic Small Outline Package
P87LPC762BDH
0 to +70, Plastic Thin Small Outline Package
Frequency
20 MHz (5 V), 10 MHz (3 V)
20 MHz (5 V), 10 MHz (3 V)
20 MHz (5 V), 10 MHz (3 V)
20 MHz (5 V), 10 MHz (3 V)
20 MHz (5 V), 10 MHz (3 V)
Drawing Number
SOT146–1
SOT163–1
SOT146–1
SOT163–1
SOT360–1
2001 Oct 26
1

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P87LPC762BN 전자부품, 판매, 대치품
Philips Semiconductors
Low power, low price, low pin count (20 pin)
microcontroller with 2 kbyte OTP
Preliminary data
87LPC762
FFFFh
UNUSED CODE
MEMORY SPACE
32-BYTE CUSTOMER
CODE SPACE
(ACCESSIBLE VIA MOVC)
FCFFh
FCE0h
FFh
UNUSED CODE
MEMORY SPACE
2 K BYTES ON-CHIP
CODE MEMORY
INTERRUPT VECTORS
ON-CHIP CODE
MEMORY SPACE
0800h
07FFh
SPECIAL FUNCTION
REGISTERS
(ONLY DIRECTLY
ADDRESSABLE)
128 BYTES ON-CHIP DATA
MEMORY
(DIRECTLY AND
INDIRECTLY
ADDRESSABLE)
80h
7Fh
16-BIT ADDRESSABLE BYTES
0000h
ON-CHIP DATA
MEMORY SPACE
00h
UNUSED SPACE
CONFIGURATION BYTES
UCFG1, UCFG2
(ACCESSIBLE VIA MOVX)
FFFFh
FD01h
FD00h
UNUSED SPACE
EXTERNAL DATA
MEMORY SPACE*
0000h
* The 87LPC762 does not support access to external data memory. However, the User Configuration Bytes
are accessed via the MOVX instruction as if they were in external data memory.
Figure 1. 87LPC762 Program and Data Memory Map
su01221
2001 Oct 26
4

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