AT89LS51-16JI Atmel, AT89LS51-16JI Datasheet - Page 6
AT89LS51-16JI
Manufacturer Part Number
AT89LS51-16JI
Description
IC 8051 MCU FLASH 4K 44PLCC
Manufacturer
Atmel
Series
89LSr
Datasheet
1.AT89LS51-16AU.pdf
(31 pages)
Specifications of AT89LS51-16JI
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
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
4.10
4.11
4.12
5. Special Function Registers
6
EA/VPP
XTAL1
XTAL2
AT89LS51
External Access Enable. EA must be strapped to GND in order to enable the device to fetch
code from external program memory locations starting at 0000H up to FFFFH. Note, however,
that if lock bit 1 is programmed, EA will be internally latched on reset.
EA should be strapped to V
This pin also receives the 12-volt programming enable voltage (V
Input to the inverting oscillator amplifier and input to the internal clock operating circuit.
Output from the inverting oscillator amplifier
A map of the on-chip memory area called the Special Function Register (SFR) space is shown in
Table
Note that not all of the addresses are occupied, and unoccupied addresses may not be imple-
mented on the chip. Read accesses to these addresses will in general return random data, and
write accesses will have an indeterminate effect.
5-1.
CC
for internal program executions.
PP
) during Flash programming.
3053C–MICRO–6/08