Rainbow Electronics AT83C26 - Manual (Page 66)

66
7511B–SCR–10/05
AT83C26
Table 48. Host Interface (IO1, IO2, AUX1, AUX2, CLK, A2/CK, A1/RST, INT)
Symbol Parameter Min Typ Max Unit Test Conditions
V
IL
Input Low-voltage 0.8 V
V
IH
Input High Voltage 2.2 V
V
OL
Output low voltage 0.3 V I
OL
= -500µA
V
OH
Output High Voltage VCC - 0.7V V I
OH
= +30µA
Table 49. Host Interface (SCL, SDA, RESET)
Symbol Parameter Min Typ Max Unit Test Conditions
V
IL
Input Low-voltage 0.8 V
V
IH
Input High Voltage 2.2 V
V
OL
Output low voltage 0.3 V I
OL
= -3mA
Table 50. Smart Card 1 Class A, 5V (CVCC1)
Symbol Parameter Min Typ Max Unit Test Conditions
CVCC Smart card voltage 4.6 5 5.4 V
Load = 60mA
VCC = 3V to 5.5V if STEPREG = 0
VCC > 5.3V if STEPREG = 1
CI
CC
_ovf
Card Supply Current Overflow:
ICCADJA = 0 (reset value)
70 120 200 mA
Ripple on CVCC 70 200 mV
With low ESR capacitance
(0.1 Ohms max)
Spikes on CVCC 0.5 V
Vcardok up Vcardok high level threshold 5 V
Vcardok down Vcardok low level threshold 4.65 V
T
VHL
CVCC valid to 0.4V 100 500
μ
s C
L
=10
μ
F
T
VLH
CVCC 0 to valid 1000 4000
μ
s C
L
= 10
μ
F
Table 51. Smart Card 1 Class B, 3V (CVCC1)
Symbol Parameter Min Typ Max Unit Test Conditions
CVCC Smart card voltage 2.76 3.24 V
Load = 60mA
VCC = 3V to 5.5V if STEPREG = 0
VCC > 3.3V if STEPREG = 1