AT87C52X2-SLSUM Atmel, AT87C52X2-SLSUM Datasheet - Page 27
![IC 8051 MCU 8K OTP 40MHZ 44PLCC](/photos/6/70/67043/453-44-plcc_sml.jpg)
AT87C52X2-SLSUM
Manufacturer Part Number
AT87C52X2-SLSUM
Description
IC 8051 MCU 8K OTP 40MHZ 44PLCC
Manufacturer
Atmel
Series
87Cr
Datasheet
1.TS87C52X2-VCA.pdf
(55 pages)
Specifications of AT87C52X2-SLSUM
Core Processor
8051
Core Size
8-Bit
Speed
40/20MHz
Connectivity
UART/USART
Peripherals
POR
Number Of I /o
32
Program Memory Size
8KB (8K x 8)
Program Memory Type
OTP
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
4184G–8051–09/06
Exit from power-down by reset redefines all the SFRs, exit from power-down by external
interrupt does no affect the SFRs.
Exit from power-down by either reset or external interrupt does not affect the internal
RAM content.
Note:
Table 15. The State of Ports During Idle and Power-down Modes
Note:
Mode
Power
Power
Down
Down
Idle
Idle
If idle mode is activated with power-down mode (IDL and PD bits set), the exit sequence
is unchanged, when execution is vectored to interrupt, PD and IDL bits are cleared and
idle mode is not entered.
1. Port 0 can force a "zero" level. A "one" will leave port floating.
Program
Memory
External
External
Internal
Internal
ALE
1
1
0
0
PSEN
1
1
0
0
PORT0
Floating
Floating
Data
Data
Port
Port
(1)
(1)
Port Data
Port Data
Port Data
Port Data
PORT1
TS8xCx2X2
Port Data
Port Data
Port Data
PORT2
Address
Port Data
Port Data
Port Data
Port Data
PORT3
27