P87LPC764BD NXP Semiconductors, P87LPC764BD Datasheet - Page 6

• Manufacturer Part Number: P87LPC764BD
• Description: MCU 8-Bit 87LP 80C51 CISC 4KB EPROM 5V 20-Pin SO Tube
• Manufacturer: NXP Semiconductors

Specifications of P87LPC764BD

• Package: 20SO
• Device Core: 80C51
• Family Name: 87LP
• Maximum Speed: 20 MHz
• Ram Size: 128 Byte
• Program Memory Size: 4 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 18
• Interface Type: I2C/UART
• Operating Temperature: 0 to 70 °C
• Number Of Timers: 2

Philips Semiconductors
2003 Sep 03
Low power, low price, low pin count (20 pin)
microcontroller with 4 kbyte OTP
*
The 87LPC764 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.
(ACCESSIBLE VIA MOVC)
INTERRUPT VECTORS
32-BYTE CUSTOMER
4 K BYTES ON-CHIP
MEMORY SPACE
MEMORY SPACE
MEMORY SPACE
CODE MEMORY
UNUSED CODE
UNUSED CODE
ON-CHIP CODE
CODE SPACE
FFFFh
FCFFh
FCE0h
1000h
0FFFh
0000h
Figure 1. P87LPC764 Program and Data Memory Map
16-BIT ADDRESSABLE BYTES
128 BYTES ON-CHIP DATA
SPECIAL FUNCTION
(ONLY DIRECTLY
(DIRECTLY AND
ADDRESSABLE)
MEMORY SPACE
ADDRESSABLE)
ON-CHIP DATA
INDIRECTLY
REGISTERS
MEMORY
5
FFh
80h
7Fh
2Fh
20h
00h
CONFIGURATION BYTES
(ACCESSIBLE VIA MOVX)
MEMORY SPACE*
UNUSED SPACE
UNUSED SPACE
EXTERNAL DATA
UCFG1, UCFG2
P87LPC764
SU01752
FFFFh
FD01h
FD00h
0000h
Product data