AT89C51RE2-RLTUM Atmel, AT89C51RE2-RLTUM Datasheet - Page 177

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

Specifications of AT89C51RE2-RLTUM

• 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-TQFP, 44-VQFP
• 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
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89OCD-01
• Minimum Operating Temperature: - 40 C
• Height: 1.45 mm
• Length: 10.1 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 10.1 mm
• 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

Flash Memory
7663E–8051–10/08
Table 128. Timing Symbol Definitions
Table 129. Memory AC Timing
VDD = 3V to 5.5V, TA = -40 to +85°C
Figure 76. Flash Memory – ISP Waveforms
Figure 77. Flash Memory – Internal Busy Waveforms
S (Hardware
condition)
R
B
Symbol
T
T
T
N
T
SVRL
RLSX
BHBL
FDR
FCY
PSEN#1
FBUSY bit
Signals
RST
Parameter
Input PSEN# Valid to RST Edge
Input PSEN# Hold after RST Edge
Flash Internal Busy (Programming) Time
Number of Flash Erase/Write Cycles
Flash Retention Time
PSEN#,EA
RST
FBUSY flag
T
SVRL
T
BHBL
T
RLSX
L
V
X
100 000
Min
50
50
10
Typ
10
AT89C51RE2
Conditions
Low
Valid
No Longer Valid
Max
cycles
years
Unit
ms
ns
ns
177