Dual Differential Transceiver BTF1A
With Idle Bus Indicator
Data Sheet
March 2001
Electrical Characteristics (continued)
Table 5. Receiver Voltage and Current Characteristics
For variation in minimum VOH and maximum VOL over the temperature range, see Figure 10. TA = –40 °C to +125 °C.
Parameter
Symbol
Min
Typ
Max
Unit
Output Voltages VCC = 4.75 V:
Low, IOL = 8.0 mA1
VOL
VOH
—
—
—
0.5
—
V
V
High, IOH = −400 µA
2.4
Enable Input Voltages:
1
Low, VCC = 5.25 V
VIL
—
2.0
—
—
—
—
0.7
—
V
V
V
1
High, VCC = 4.75 V
VIH
Clamp, VCC = 4.75 V, II = –5.0 mA
Minimum Differential Input Voltages, VIH – VIL:2
−0.80 V < VIH < 7.2 V, −1.2 V < VIL < 6.8 V
Input Offset Voltage
VIK
−1.0
1
VTH
—
0.1
0.20
0.05
V
V
VOFF
0.03
Output Currents, VCC = 5.25 V:
Off-state (high Z), VO = 0.4 V
Off-state (high Z), VO = 2.4 V
Short Circuit
IOZL
—
—
—
—
—
–20
20
µA
µA
IOZH
3
IOS
–25
–100
mA
Enable Input Currents, VCC = 5.25 V:
Low, VIN = 0.4 V
IIL
IIH
IIH
—
—
—
—
—
—
–400
20
µA
µA
µA
High, VIN = 2.7 V
Reverse, VIN = 5.5 V
100
Differential Input Currents:
Low, VIN = –1.2 V
IIL
—
—
—
—
−1.0
mA
mA
High, VIN = 7.2 V
IIH
1.0
1. The input levels and difference voltage provide zero noise immunity and should be tested only in a static, noise-free environment.
2. Outputs of unused receivers assume a logic 1 level when the inputs are left open. (It is recommended that all unused positive inputs
be tied to the positive power supply. No external series resistor is required.)
3. Test must be performed one lead at a time to prevent damage to the device.
Agere Systems Inc.
5
AGERE [ AGERE SYSTEMS ]
