T7256 Agere Systems, T7256 Datasheet - Page 29

• Manufacturer Part Number: T7256
• Description: (T7234 - T7256) Compliance
• Manufacturer: Agere Systems

Lucent Technologies Inc.
February 1998
Electrical Characteristics
All characteristics are for a 15.36 MHz crystal, 135
V
Power Consumption
Table 7. Power Consumption
Pin Electrical Characteristics
Table 8. Digital dc Characteristics (Over Operating Ranges)
Power Consumption
Power Consumption
Input Leakage Current:
Input Voltage:
Output Leakage Current:
Output Voltage:
DD
Low
High
Low
High
Low
High
Low-to-high Threshold
High-to-low Threshold
Low
High
Low
High
Low
High
Low
High
Low, TTL
High, TTL
= 5 V
Parameter
5%, GND = 0 V, and output capacitance = 50 pF.
Parameter
Symbol
I
I
I
I
OZHPU
OZHPD
OZLPU
OZLPD
I
I
I
I
V
V
V
V
I
V
I
V
IHPU
IHPD
V
ILPU
ILPD
V
OZH
OZL
IHC
IHS
ILC
ILS
OH
OL
IL
IH
Operating, random data
V
V
OH
V
OL
Powerdown mode
Test Conditions
V
V
OH
T7234 Single-Chip NT1 (SCNT1) Euro-LITE Transceiver
V
V
= V
V
IH
OL
V
= 0, Pin 44 = 0 (pins 4, 8, 9, 17)
V
OH
IH
I
I
IL
= V
I
OH
IL
I
OH
OL
I
= V
OH
OL
All pins except 2, 6, 43
All pins except 2, 6, 43
DD
OL
= V
= 0, Pin 44 = 0 (pins 3, 14)
= 0 (pins 8, 9, 12, 15, 43)
= V
I
I
I
= 0 (pins 2, 6, 7, 11, 44)
OH
I
OL
OL
= 0, Pin 44 = 0 (pin 11)
= 10.4 mA (pins 3, 14)
= 13.5 mA (pins 8, 17)
, Pin 44 = 0 (pins 4, 8, 9, 17)
OL
DD
= 19.5 mA (pins 4, 9)
= 8.2 mA (pins 8, 17)
= 32.2 mA (pins 4, 9)
Test Conditions
DD
DD
= 3.3 mA (pin 11)
DD
= 6.5 mA (pin 14)
= 5.1 mA (pin 11)
, Pin 44 = 0 (pins 3, 14)
= 4.5 mA (pin 3)
line load, random 2B+D data, T
(pins 8, 9, 12, 15, 43)
(pins 2, 6, 7, 11, 44)
, Pin 44 = 0 (pin 11)
Pins 2, 6
Pins 2, 6
Pin 43
Pin 43
Min
—
—
V
Typ
270
0.7 V
35
DD
A
Min
–52
–10
–10
–10
–52
–10
2.0
2.4
2.4
2.4
2.4
10
—
—
—
—
—
—
—
—
—
—
—
– 0.5
= –40 C to +85 C,
DD
0.2 V
Max
350
50
Max
–10
–10
–52
–10
0.8
0.5
0.4
0.4
0.4
0.4
0.4
10
10
52
—
—
—
—
—
—
—
—
—
—
DD
Unit
mW
mW
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A
A
A
A
A
A
A
A
A
25