P87C51RA+IA,512 NXP Semiconductors, P87C51RA+IA,512 Datasheet - Page 45

• Manufacturer Part Number: P87C51RA+IA,512
• Description: IC 80C51 MCU 512 ROMLESS 44PLCC
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C51RA+IA,512

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Processor Series: P87C5x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: 0 C
• Package: 44PLCC
• Device Core: 80C51
• Family Name: 87C
• Maximum Speed: 16 MHz
• For Use With: OM10064 - EMULATOR 80C51 PDS51-MK2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: 935252790512; P87C51RA+IA; P87C51RA+IA

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:
2000 Aug 07
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
P3.7
Product specification
0
1
1
1
1
0
0
PP
8XC54/58
is held at
P3.6
0
1
1
0
1
0
1