AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 168

• Manufacturer Part Number: AT89C5131A-L
• Manufacturer: Atmel Corporation

Specifications of AT89C5131A-L

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 48 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 1024
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 3.6
• Timers: 4
• Isp: UART/USB
• Watchdog: Yes

External Data Memory Read Cycle
Serial Port Timing - Shift
Register Mode
168
AT89C5131A-L
PORT 0
PORT 2
ALE
PSEN
RD
OR SFR-P2
ADDRESS
Table 120. Symbol Description (F = 40 MHz)
Table 121. AC Parameters for a Fix Clock (F = 40 MHz)
Table 122. AC Parameters for a Variable Clock
Symbol
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
A0-A7
Symbol
T
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
LLAX
T
AVWL
T
LLWL
Symbol
T
T
T
T
T
QVHX
XHQX
XHDX
XHDV
XLXL
T
AVDV
Type
T
Max
Min
Min
Min
Min
LLDV
ADDRESS A8-A15 OR SFR P2
T
RLAZ
Standard
Min
10 T - x
10 T - x
300
200
Clock
2 T - x
30
0
12 T
x
T
RLRH
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
DATA IN
T - x
6 T
x
Max
117
T
T
WHLH
RHDX
for -M Range
X Parameter
133
T
50
20
0
RHDZ
Units
4338F–USB–08/07
ns
ns
ns
ns
ns
Units
ns
ns
ns
ns
ns