P87C51FB-5A NXP Semiconductors, P87C51FB-5A Datasheet - Page 50

• Manufacturer Part Number: P87C51FB-5A
• Description: MCU 8-Bit 87C 80C51 CISC 16KB EPROM 3.3V/5V 44-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P87C51FB-5A

• Package: 44PLCC
• Device Core: 80C51
• Family Name: 87C
• Maximum Speed: 16 MHz
• Ram Size: 256 Byte
• Program Memory Size: 16 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 32
• Interface Type: UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

Philips Semiconductors
ROM CODE SUBMISSION FOR 32K ROM DEVICES (80C58, 83C51FC, AND 83C51RC+)
When submitting ROM code for the 32K ROM devices, the following must be specified:
1. 32k byte user ROM data
2. 64 byte ROM encryption key
3. ROM security bits.
Security Bit 1: When programmed, this bit has two effects on masked ROM parts:
1. External MOVC is disabled, and
2. EA is latched on Reset.
Security Bit 2: When programmed, this bit inhibits Verify User ROM.
NOTE: Security Bit 2 cannot be enabled unless Security Bit 1 is enabled.
If the ROM Code file does not include the options, the following information must be included with the ROM code.
For each of the following, check the appropriate box, and send to Philips along with the code:
2000 Aug 07
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33MHz)
ADDRESS
0000H to 7FFFH
8000H to 803FH
8040H
8040H
Security Bit #1:
Security Bit #2:
Encryption:
Enabled
Enabled
No
CONTENT
DATA
KEY
SEC
SEC
Disabled
Disabled
Yes
If Yes, must send key file.
50
BIT(S)
7:0
7:0
0
1
8XC51RA+/RB+/RC+/RD+/80C51RA+
8XC51FA/FB/FC/80C51FA
COMMENT
User ROM Data
ROM Encryption Key
FFH = no encryption
ROM Security Bit 1
0 = enable security
1 = disable security
ROM Security Bit 2
0 = enable security
1 = disable security
Product specification
8XC54/58