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AT83C24B-PRRIL датащи(PDF) 29 Page - ATMEL Corporation

номер детали AT83C24B-PRRIL
подробное описание детали  Smart Card Reader Interface with Power Management
PDF  42 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT83C24B-PRRIL датащи(HTML) 29 Page - ATMEL Corporation

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29
4234F–SCR–10/05
AT83C24
V
OL
Output Low-voltage (I/O, C4, C8, PRES/INT)
0.05
0.4
V
V
I
OL = -100 μA
I
OL = -1.2 mA
V
OH
Output High Voltage (C4, C8, PRES/INT)
V
OH on I/O depends on external pull up value
0.8 x EVCC
EVCC
V
EVCC from 1.6V to VCC
I
OH = 100 μA
EI
CC
Extra Supply Current
+3
mA
C
L = 100 nF
R
PRES/INT
PRES/INT weak pull-up output current
300
330
360
κΩ
Short to VSS
INT_PULLUP = 0: Internal
pull-up active.
EVCC
EVCC pin not connected to a power supply
Vpeak - 10 mV
Vpeak
Vpeak + 25 mV
V
C
L = 100 nF, EIcc = +3
mA
Vpeak on I/O from 1.6V to
VCC
EAUTO = 1:
min duration 1µs,
min frequency 0.1Hz,
spikes <50ns are filtered.
EVCC
EVCC pin connected to a power supply
Vpeak -
200mV
EAUTO = 1
CLK
Clock signal for AT83C24
4
48
MHz
If DCK[2:0] =0
(CLK=4MHz to 4.61MHz),
a duty cycle of 50% is
needed.
CLK
Clock signal for AT83C24NDS
18
48
MHz
no constrainst on duty
cycle
Table 18. Host Interface (I/O, C4, C8, CLK, A2, A1, A0, CMDVCC, PRES/INT) (Continued)
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Table 19. Host Interface (SCL, SDA, RESET)
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
V
IL
Input Low-voltage
-0.5
1.9
0.3 x VCC
V
VCC > 4.5V
VCC <= 4.5V
V
IH
Input High Voltage
3
0.7 x VCC
VCC + 0.5
V
VCC > 4.5V
VCC <= 4.5V
V
OL
Output Low-voltage
0.4
V
I
OL = -3 mA
V
HIST
Input trigger hysteresis
0.1 x VCC
Table 20. Smart Card Class A
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
CI
CC
Card Supply Current Capability
65
65
mA
VCC=3V to 5.5V,
STEPREG=0
VCC > 5.35V, STEPREG = 1
CI
CC_ovf
Card Supply Current Overflow:
ICCADJ = 0 (reset value)
ICCADJ = 1
66
66
120
130
130
150
mA
VCC from 3 to 5.5V



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