AT89C5122D-RDRUM Atmel, AT89C5122D-RDRUM Datasheet - Page 196

• 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

Shift Register Timing
Waveform
External Clock Drive
Characteristics (XTAL1)
External Clock Drive
Waveforms
AC Testing Input/Output
Waveforms
196
AT83R5122, AT8xC5122/23
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE to SBUF
INPUT DATA
Table 120. AC Parameters
AC inputs during testing are driven at V
Timing measurement are made at V
CLEAR RI
INPUT/OUTPUT
T
CHCX
Symbol
T
T
T
T
T
CHCX
CLCH
CHCL
CLCL
CLCX
0.45V
/T
CLCX
V
CC
-0.5V
T
QVXH
Parameter
Oscillator Period
High Time
Low Time
Rise Time
Fall Time
Cyclic ratio in X2 mode
0
T
XHDV
0.2V
1
0.7V
0
VALID
V
T
CC
CC
XLXL
CC
-0.1
T
0.45V
-0.5V
CHCL
T
XHQX
2
1
VALID
IH
T
min for a logic “1” and V
3
XHDX
2
CC
VALID
- 0.5 for a logic “1” and 0.45V for a logic “0”.
T
CLCX
4
3
VALID
0.2 V
0.2 V
Min
125
40
5
5
CC
CC
5
T
4
CLCL
+ 0.9
- 0.1
VALID
T
IL
CLCH
6
5
max for a logic “0”.
T
VALID
CHCX
Max
60
5
5
7
4202F–SCR–07/2008
6
VALID
SET TI
SET RI
Units
8
7
ns
ns
ns
ns
ns
%
VALID