AT87C52X2-RLRUM Atmel, AT87C52X2-RLRUM Datasheet - Page 47
![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
Shift Register Timing
Waveforms
Figure 21. Shift Register Timing Waveforms
4184I–8051–02/08
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
INPUT DATA
CLEAR RI
T
QVXH
0
Table 34. AC Parameters for a Variable Clock: Derating Formula
T
XHDV
Symbol
T
T
T
T
T
1
QVHX
XHQX
XHDX
XHDV
XLXL
0
VALID
T
XLXL
T
XHQX
2
1
VALID
Type
Max
Min
Min
Min
Min
T
3
XHDX
2
Standard
VALID
10 T - x
10 T - x
Clock
2 T - x
12 T
x
4
3
VALID
X2 Clock
5 T - x
5 T- x
T - x
6 T
x
5
4
VALID
-M
133
50
20
0
6
5
VALID
133
-V
50
20
0
7
6
VALID
SET TI
SET RI
133
-L
8
50
20
0
7
VALID
Units
ns
ns
ns
ns
ns
47