AT87C51RC2-3CSUM Atmel, AT87C51RC2-3CSUM Datasheet - Page 69
AT87C51RC2-3CSUM
Manufacturer Part Number
AT87C51RC2-3CSUM
Description
IC 8051 MCU 32K OTP 40MHZ 40DIP
Manufacturer
Atmel
Series
87Cr
Datasheet
1.TS87C51RB2-VIA.pdf
(86 pages)
Specifications of AT87C51RC2-3CSUM
Core Processor
8051
Core Size
8-Bit
Speed
40/20MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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11.5.8
Figure 11-9. Shift Register Timing Waveforms
4188F–8051–01/08
Shift Register Timing Waveforms
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
INPUT DATA
CLEAR RI
Table 11-11. AC Parameters for a Variable Clock: derating formula
T
QVXH
Symbol
0
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
T
XHDV
1
0
VALID
T
XLXL
Type
Max
Min
Min
Min
Min
T
XHQX
2
1
VALID
Standard
10 T - x
10 T - x
2 T - x
Clock
12 T
T
3
XHDX
x
2
VALID
X2 Clock
4
5 T - x
5 T- x
3
T - x
6 T
VALID
x
5
4
VALID
133
-M
50
20
0
6
5
VALID
133
50
20
AT/TS8xC51Rx2
-V
0
7
6
VALID
133
SET TI
SET RI
50
20
-L
0
8
7
VALID
Units
ns
ns
ns
ns
ns
69
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