P87C51X2BBD,157 NXP Semiconductors, P87C51X2BBD,157 Datasheet - Page 7

• Manufacturer Part Number: P87C51X2BBD,157
• Description: IC 80C51 MCU 128 RAM 44LQFP
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C51X2BBD,157

• Program Memory Type: OTP
• Program Memory Size: 4KB (4K x 8)
• Package / Case: 44-LQFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR
• Number Of I /o: 32
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Processor Series: P87C5x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Interface Type: UART
• Maximum Clock Frequency: 33 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: OM10064 - EMULATOR 80C51 PDS51-MK2
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 935271374157; P87C51X2BBD; P87C51X2BBD

1. P3.2 and P3.5 absent in the TSSOP38 package.
Philips Semiconductors
BLOCK DIAGRAM 2 (CPU-ORIENTED)
NOTE:
2003 Jan 24
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
ALE/PROG
EA / V
PSEN
RST
PP
V
V
CC
SS
XTAL1
CONTROL
REGISTER
TIMING
RAM ADDR
REGISTER
OSCILLATOR
AND
B
PD
XTAL2
RAM
ACC
TMP2
DRIVERS
P1.0–P1.7
PORT 1
PORT 1
LATCH
PSW
DRIVERS
P0.0–P0.7
PORT 0
PORT 0
LATCH
ALU
TMP1
7
TIMERS
SFRs
P2.0–P2.7
DRIVERS
PORT 2
PORT 2
LATCH
POINTER
DRIVERS
STACK
P3.0–P3.7
PORT 3
PORT 3
LATCH
P80C3xX2; P80C5xX2;
ROM/EPROM
1
8
PROGRAM
COUNTER
MULTIPLE
PROGRAM
REGISTER
ADDRESS
MENTER
BUFFER
DPTR’S
INCRE-
PC
8
P87C5xX2
su01723
Product data
16