P87LPC760BDH NXP Semiconductors, P87LPC760BDH Datasheet - Page 47
P87LPC760BDH
Manufacturer Part Number
P87LPC760BDH
Description
MCU 8-Bit 87LP 80C51 CISC 1KB EPROM 5V 14-Pin TSSOP Tube
Manufacturer
NXP Semiconductors
Datasheet
1.P87LPC760BN112.pdf
(56 pages)
Specifications of P87LPC760BDH
Package
14TSSOP
Device Core
80C51
Family Name
87LP
Maximum Speed
20 MHz
Ram Size
128 Byte
Program Memory Size
1 KB
Operating Supply Voltage
5 V
Data Bus Width
8 Bit
Program Memory Type
EPROM
Number Of Programmable I/os
12
Interface Type
I2C/UART
Operating Temperature
0 to 70 °C
Number Of Timers
2
Philips Semiconductors
Security Bits
When neither of the security bits are programmed, the code in the
EPROM can be verified. When only security bit 1 is programmed, all
Table 11. EPROM Security Bits
2002 Mar 07
Low power, low price, low pin count (14 pin)
microcontroller with 1 kbyte OTP
UCFG2
SB2
1
1
0
0
BIT
UCFG2.7, 6
UCFG2.5–0
Address: FD01h
SB1
1
0
1
0
Both security bits unprogrammed. No program security features enabled. EPROM is programmable and verifiable.
Only security bit 1 programmed. Further EPROM programming is disabled. Security bit 2 may still be programmed.
Only security bit 2 programmed. This combination is not supported.
Both security bits programmed. All EPROM verification and programming are disabled.
SYMBOL
SB2, SB1
SB2
—
7
FUNCTION
EPROM security bits. See table entitled, “EPROM Security Bits” for details.
Reserved for future use.
Figure 40. EPROM System Configuration Byte 2 (UCFG2)
SB1
6
—
5
—
4
44
Protection Description
—
3
further programming of the EPROM is disabled. At that point, only
security bit 2 may still be programmed. When both security bits are
programmed, EPROM verify is also disabled.
—
2
—
1
—
0
Unprogrammed Value: FFh
P87LPC760
Preliminary data
SU01186