80C32 Philips Semiconductors, 80C32 Datasheet - Page 45

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80C32

Manufacturer Part Number
80C32
Description
CMOS single-chip 8-bit microcontrollers
Manufacturer
Philips Semiconductors
Datasheet

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1. ‘0’ = Valid low for that pin, ‘1’ = valid high for that pin.
2. V
3. V
*
1. P – programmed. U – unprogrammed.
2. Any other combination of the security bits is not defined.
Philips Semiconductors
Table 9. EPROM Programming Modes
NOTES:
Table 10. Program Security Bits for EPROM Devices
NOTES:
1999 Apr 01
Read signature
Program code data
Verify code data
Pgm encryption table
Pgm security bit 1
Pgm security bit 2
Pgm security bit 3
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33MHz)
ALE/PROG receives 5 programming pulses for code data (also for user array; 5 pulses for encryption or security bits) while V
12.75V. Each programming pulse is low for 100 s ( 10 s) and high for a minimum of 10 s.
1
2
3
4
PP
CC
PROGRAM LOCK BITS
= 12.75V 0.25V.
= 5V 10% during programming and verification.
SB1
U
P
P
P
MODE
SB2
U
U
P
P
1, 2
SB3
U
U
U
P
RST
PROTECTION DESCRIPTION
No Program Security features enabled. (Code verify will still be encrypted by the Encryption Array if
programmed.)
MOVC instructions executed from external program memory are disabled from fetching code bytes
from internal memory, EA is sampled and latched on Reset, and further programming of the EPROM
is disabled.
Same as 2, also verify is disabled.
Same as 3, external execution is disabled.
1
1
1
1
1
1
1
PSEN
0
0
0
0
0
0
0
ALE/PROG
0*
0*
0*
0*
0*
1
1
45
EA/V
V
V
V
V
V
1
PP
1
PP
PP
PP
PP
PP
8XC51RA+/RB+/RC+/RD+/80C51RA+
P2.7
0
1
0
1
1
1
0
8XC51FA/FB/FC/80C51FA
P2.6
0
0
0
0
1
1
1
8XC52/54/58/80C32
P3.7
Product specification
0
1
1
1
1
0
0
PP
is held at
P3.6
0
1
1
0
1
0
1

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