P87C54X2BBD,157 NXP Semiconductors, P87C54X2BBD,157 Datasheet - Page 28

• Manufacturer Part Number: P87C54X2BBD,157
• Description: IC 80C51 MCU 256 RAM 44LQFP
• Manufacturer: NXP Semiconductors
• Series: 87Cr

Specifications of P87C54X2BBD,157

• Program Memory Type: OTP
• Program Memory Size: 16KB (16K 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: 256 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: 256 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
• Package: 44LQFP
• Device Core: 80C51
• Family Name: 87C
• Maximum Speed: 33 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935271392157; P87C54X2BBD; P87C54X2BBD

Philips Semiconductors
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)
Data
Shift
TxD
TI
Stop Bit Gen.
RxD
Shift
Bit Detector
Sample Times
RI
Clock
Clock
RX
TX
Mode 2
2
Write to SBUF
12-clock mode;
f
Phase 2 Clock
OSC
(1/2 f
mode)
in 6-clock
OSC
SMOD = 1
SMOD = 0
(SMOD is
PCON.7)
16 Reset
Start Bit
in
Send
RxD
Start
Bit
S1P1
SBUF
Write
D0
D0
to
Transition
Detector
1-to-0
Sample
D1
D1
Interrupt
Serial
16
Port
D2
D2
D
CL
TB8
Figure 16. Serial Port Mode 2
S
Bit Detector
Q
TX Clock
Start
Read
SBUF
Start
D3
D3
16
Stop Bit
RX Clock
Load
SBUF
Gen.
Zero Detector
D4
28
D4
TX Control
RX Control
80C51 Internal Bus
80C51 Internal Bus
SBUF
Input Shift Register
T1
R1
D5
D5
SBUF
Shift
(9 Bits)
1FFH
D6
D6
Load
SBUF
Data
Send
Shift
Shift
D7
D7
P80C3xX2; P80C5xX2;
TB8
RB8
Stop Bit
Stop Bit
P87C5xX2
Product data
TxD
Transmit
Receive
SU01627