AT89LS51-16JU Atmel, AT89LS51-16JU Datasheet - Page 3

• Manufacturer Part Number: AT89LS51-16JU
• Description: IC MCU 4K FLASH 16MHZ 44-PLCC
• Manufacturer: Atmel
• Series: 89LSr

Specifications of AT89LS51-16JU

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: UART/USART
• Peripherals: WDT
• Number Of I /o: 32
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 4 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

3. Block Diagram
3053C–MICRO–6/08
ALE/PROG
EA / V
PSEN
RST
GND
V
PP
CC
CONTROL
REGISTER
TIMING
OSC
AND
B
RAM ADDR.
REGISTER
INSTRUCTION
REGISTER
WATCH
DOG
ACC
TMP2
RAM
PORT 3 DRIVERS
PSW
P3.0 - P3.7
PORT 0 DRIVERS
PORT 3
LATCH
ALU
P0.0 - P0.7
PORT 0
LATCH
TMP1
INTERRUPT, SERIAL PORT,
AND TIMER BLOCKS
PORT 2
LATCH
PORT 1 DRIVERS
PORT 1
LATCH
PORT 2 DRIVERS
POINTER
P2.0 - P2.7
STACK
P1.0 - P1.7
FLASH
PORT
ISP
INCREMENTER
DUAL DPTR
PROGRAM
PROGRAM
PROGRAM
REGISTER
COUNTER
ADDRESS
BUFFER
LOGIC
PC
AT89LS51
3