P87C51FB-4A NXP Semiconductors, P87C51FB-4A Datasheet - Page 51

• Manufacturer Part Number: P87C51FB-4A
• Description: Microcontrollers (MCU) 80C51 16K/256 OTP
• Manufacturer: NXP Semiconductors

Specifications of P87C51FB-4A

• Data Bus Width: 8 bit
• Program Memory Type: OTP
• Program Memory Size: 16 KB
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: PLCC-44
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details
• Other names: P87C51FB-4A,512

Philips Semiconductors
ROM CODE SUBMISSION FOR 64K ROM DEVICE (83C51RD+)
When submitting ROM code for the 64K ROM devices, the following must be specified:
1. 64k 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 FFFFH
10000H to 1003FH
10040H
10040H
Security Bit #1:
Security Bit #2:
Encryption:
Enabled
Enabled
No
CONTENT
DATA
KEY
SEC
SEC
Disabled
Disabled
Yes
If Yes, must send
51
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