XRT79L71 Datasheet, PDF (51/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

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PRELIMINARY
1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L71
REV. P1.0.3
ELECTRICAL CHARACTERISTICS
TABLE 2: DC ELECTRICAL CHARACTERISTICSS
APPLIES TO ALL TTL-LEVEL INPUT AND CMOS LEVEL OUTPUT PINS - AMBIENT TEMPERATURE = 25°C
SYMBOL
PARAMETER
TEST CONDITION
MIN
MAX
UNITS
VDDQ I/O Supply Voltage
3.135
3.465
V
VIH High-Level Input Voltage
VOUT ³ VOH(min)
2.0
VDD + 0.3 V
VIL Low-Level Input Voltage
VOUT < VOL (max)
-0.3
0.3*VDD
V
VOH High-Level Output Voltage
VDD = MIN
IOH = -2mA
1.9
V
VIN = VIH
VOL Low-Level Output Voltage
VDD = MIN
VIN = VIL
IOL = 2mA
0.6
V
II
Input Current
VDD = MAX
VIN = VDD or GND
±15
mA
AC ELECTRICAL CHARACTERISTIC INFORMATION
MICROPROCESSOR INTERFACE TIMING FOR REVISION A SILICON
MICROPROCESSOR INTERFACE TIMING - ASYNCHRONOUS INTEL MODE
FIGURE 2. ASYNCHRONUS MODE 1 - INTEL TYPE PROGRAMMED I/O TIMING (WRITE CYCLE)
CS
ALE AS
A[14:0]
D[7:0]
RD_DS
WR R/W
t0
Addres
t₃
t1
Data
t5
t4
t₂
Ah
Md 1 I
NOTE: The values for "t0" through "t7", in this figure can be found in Table 3.
lT
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