AT89C51RE2-SLRUM Atmel, AT89C51RE2-SLRUM Datasheet - Page 174

• Manufacturer Part Number: AT89C51RE2-SLRUM
• Description: MCU 8051 128K FLASH 44-PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51RE2-SLRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Interface Type: UART, SPI
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89OCD-01
• For Use With: AT89STK-11 - KIT STARTER FOR AT89C51RX2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

External Data Memory Read Cycle
Serial Port Timing -
Shift Register Mode
174
AT89C51RE2
PORT 0
PORT 2
ALE
PSEN
RD
OR SFR-P2
ADDRESS
Table 125. Symbol Description
Table 126. AC Parameters for a Fix Clock
Notes:
Symbol
T
T
T
T
T
Symbol
QVHX
XHQX
XHDX
XHDV
XLXL
1. ‘ -L ‘ refers to 2V - 5.5V version.
2. ‘ -M ’ refers to 4.5V to 5.5V version.
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
A0-A7
T
Parameter
Serial port clock cycle time
Output data set-up to clock rising edge
Output data hold after clock rising edge
Input data hold after clock rising edge
Clock rising edge to input data valid
Min
LLAX
T
300
200
30
AVWL
0
T
LLWL
T
-M
AVDV
T
(1)
LLDV
ADDRESS A8-A15 OR SFR P2
Max
117
T
RLAZ
T
RLRH
Min
300
200
30
0
DATA IN
-L
T
(2)
T
WHLH
RHDX
Max
117
T
RHDZ
7663E–8051–10/08
Units
ns
ns
ns
ns
ns