P83C654X2FBD/CV710 NXP Semiconductors, P83C654X2FBD/CV710 Datasheet - Page 27

• Manufacturer Part Number: P83C654X2FBD/CV710
• Description: 8-bit Microcontrollers - MCU P83C654X2FBD/LQFP44/TRAYBM//CV
• Manufacturer: NXP Semiconductors

Specifications of P83C654X2FBD/CV710

• Core: 80C51
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 16 MHz
• Program Memory Size: 16 KB
• Data Ram Size: 256 B
• Operating Supply Voltage: 5 V
• Package / Case: SOT-187-2
• Mounting Style: SMD/SMT
• Interface Type: I2C, Serial
• Number Of Programmable I/os: 4
• Number Of Timers: 3
• Processor Series: 80C51
• Program Memory Type: OTP EPROM

Philips Semiconductors
2004 Apr 20
80C51 8-bit microcontroller family
256B RAM, low voltage (2.7 to 5.5 V), low power, high speed
(30/33 MHz)
SMOD = 0
Data
Shift
TxD
TI
Stop Bit Gen.
RxD
Shift
Bit Detector
Sample Times
RI
Clock
Clock
TX
RX
Overflow
Timer 1
Write to SBUF
2
SMOD = 1
16 Reset
RxD
Start Bit
Send
Start
Bit
S1P1
SBUF
Write
Interrupt
Serial
to
Port
D0
D0
Transition
Detector
1-to-0
Sample
D1
16
D1
16 kB OTP/ROM,
D2
D2
D
CL
TB8
Figure 18. Serial Port Mode 3
S
Bit Detector
Q
TX Clock
Start
Read
SBUF
Start
D3
D3
16
RX Clock
Load
SBUF
Zero Detector
27
TX Control
RX Control
D4
D4
80C51 Internal Bus
80C51 Internal Bus
T1
R1
SBUF
Input Shift Register
SBUF
Shift
D5
D5
(9 Bits)
1FFH
Load
SBUF
D6
Data
Send
D6
Shift
Shift
P83C654X2/P87C654X2
D7
D7
TB8
RB8
Stop Bit
Stop Bit
Product data
TxD
Transmit
Receive
SU00542