AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 32

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

6.3.8
6.3.8.1
6.3.8.2
6.3.8.3
6.3.9
6.3.9.1
32
AT89C5132
Flash Memory
External Clock Drive and Logic Level References
Definition of Symbols
Timings
Waveforms
Definition of Symbols
Table 19. Flash Memory Timing Symbol Definitions
Table 20. Flash Memory AC Timing
V
Figure 6-21. Flash Memory – ISP Waveforms
Note:
Figure 6-22. Flash Memory – Internal Busy Waveforms
Table 21. External Clock Timing Symbol Definitions
T
T
T
N
T
DD
SVRL
RLSX
BHBL
FDR
FCY
= 2.7 to 3.3V, T
Symbol
1. ISP must be driven through a pull-down resistor (see Section “In-system Programming”,
R
C
S
B
page 18).
FBUSY bit
ISP
RST
Signals
Signals
(1)
Input ISP Valid to RST Edge
Input ISP Hold after RST Edge
FLASH Internal Busy (Programming) Time
Number of Flash Write Cycles
Flash Data Retention Time
A
ISP
RST
FBUSY flag
Clock
= -40° to +85°C
Parameter
T
SVRL
T
BHBL
T
RLSX
100K
Min
50
50
10
H
L
V
X
L
X
Typ
10
Conditions
Conditions
Low
Valid
No Longer Valid
High
Low
No Longer Valid
Max
4173ES–USB–09/07
Cycle
Year
Unit
ms
ns
ns