AT87C51RC2-RLTUL Atmel, AT87C51RC2-RLTUL Datasheet - Page 69

• Manufacturer Part Number: AT87C51RC2-RLTUL
• Description: IC 8051 MCU 32K OTP 30MHZ 44VQFP
• Manufacturer: Atmel
• Series: 87Cr

Specifications of AT87C51RC2-RLTUL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 30/20MHz
• 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): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: UART
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

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
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