AT87C52X2-RLRUM Atmel, AT87C52X2-RLRUM Datasheet - Page 2
![MCU ROMLESS 32X2 3V 44-VQFP](/photos/6/92/69202/313-44-vqfp_sml.jpg)
AT87C52X2-RLRUM
Manufacturer Part Number
AT87C52X2-RLRUM
Description
MCU ROMLESS 32X2 3V 44-VQFP
Manufacturer
Atmel
Series
87Cr
Datasheet
1.AT80C32X2-RLRUL.pdf
(55 pages)
Specifications of AT87C52X2-RLRUM
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-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Block Diagram
2
TS8xCx2X2
Table 1. Memory Size
Notes:
ALE/
TS80C32X2
TS80C52X2
TS87C52X2
EA/VPP
XTAL1
XTAL2
PSEN
1. Alternate function of Port 1
2. Alternate function of Port 3
PROG
WR
RD
(2)
(2)
CPU
ROM (bytes)
(3)
(2) (2)
EUART
Timer 0
Timer 1
(3)
8k
0
0
CORE
C51
(2) (2)
256x8
RAM
INT
Ctrl
IB-bus
Parallel I/O Ports & Ext. Bus
Port 0Port 1 Port 2 Port 3
/EPROM
EPROM (bytes)
8Kx8
ROM
8k
0
0
(1)
Timer2
(1)
TOTAL RAM (bytes)
4184I–8051–02/08
256
256
256