AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 173
AT89C5132
Manufacturer Part Number
AT89C5132
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT89C5132.pdf
(3 pages)
2.AT89C5132.pdf
(182 pages)
3.AT89C5132.pdf
(38 pages)
4.AT89C5132.pdf
(33 pages)
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
Available stocks
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23.3.9.2
23.3.9.3
Figure 23-24. AC Testing Input/Output Waveforms
Notes:
Figure 23-25. Float Waveforms
Note:
4173E–USB–09/07
1. During AC testing, all inputs are driven at
2. Timing measurements are made on all outputs at V
For timing purposes, a port pin is no longer floating when a 100 mV change from load voltage occurs and begins to float when a
100 mV change from the loading V
Timings
Waveforms
V
DD
0.45 V
Table 124. External Clock AC Timings
V
Figure 23-23. External Clock Waveform
Symbol
V
- 0.5
DD
LOAD
= 2.7 to 3.3V, T
0.45 V
T
T
T
T
T
T
CHCX
CLCL
CLCX
CLCH
CHCL
V
CR
V
V
LOAD
LOAD
DD
INPUTS
OH
+ 0.1V
- 0.5
- 0.1V
/V
0.7
0.3
V
OL
IL
V
Parameter
Clock Period
High Time
Low Time
Rise Time
Fall Time
Cyclic Ratio in X2 Mode
V
V
level occurs with I
A
IH1
= -40 to +85°C
DD
DD
V
DD
-0.5V for a logic 1 and 0.45V for a logic 0.
Timing Reference Points
T
IH
CHCL
min for a logic 1 and V
OL
/I
OH
= ±20 mA.
T
CLCX
V
V
IL
IH
T
IL
max
CLCH
min
max for a logic 0.
OUTPUTS
V
V
OH
OL
+ 0.1V
- 0.1V
T
CLCL
Min
50
10
10
40
3
3
T
CHCX
AT89C5132
Max
60
Unit
ns
ns
ns
ns
ns
%
173