AT89C5122D-RDRUM Atmel, AT89C5122D-RDRUM Datasheet - Page 195

• Manufacturer Part Number: AT89C5122D-RDRUM
• Description: IC 8051 MCU 32K CRAM USB 64-VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C5122D-RDRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: SmartCard, SPI, UART/USART, USB
• Peripherals: LED, POR, WDT
• Number Of I /o: 46
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: AT89C5122D-RDRUMTR

External Data Memory Read
Cycle
Serial Port Timing - Shift
Register Mode
4202F–SCR–07/2008
PORT 0
PORT 2
ALE
PSEN
RD
Table 118. Symbol Description (F = 40 MHz)
Table 119. AC Parameters for a Variable Clock
OR SFR-P2
ADDRESS
Symbol
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
Symbol
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
A0-A7
Type
Max
Min
Min
Min
Min
T
LLAX
T
AVWL
T
LLWL
T
AVDV
Standard
AT83R5122, AT8xC5122/23
T
Clock
10T - x
10T - x
2T - x
LLDV
12T
ADDRESS A8-A15 OR SFR P2
x
T
RLAZ
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
X2 Clock
5 T - x
5 T- x
T - x
6 T
x
T
RLRH
X parameter
DATA IN
133
50
20
0
T
T
WHLH
RHDX
T
Units
RHDZ
ns
ns
ns
ns
ns
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