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74LVCH32245A

Features: · 5 V tolerant inputs/outputs for interfacing with 5 V logic· Wide supply voltage range of 1.2 to 3.6 V· Complies with JEDEC standard no. 8-1A· CMOS low power consumption· MULTIBYTEä flow-trough standard pin-out architecture· Low inductance multiple power and ground pins for minimum...

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74LVCH32245A: Features: · 5 V tolerant inputs/outputs for interfacing with 5 V logic· Wide supply voltage range of 1.2 to 3.6 V· Complies with JEDEC standard no. 8-1A· CMOS low power consumption· MULTIBYTEä ...

74LVCH32245A Data Sheet

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Part Number:
74LVCH32245A
Supply Ability:
5000

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Product Details

Description



Features:

· 5 V tolerant inputs/outputs for interfacing with 5 V logic
· Wide supply voltage range of 1.2 to 3.6 V
· Complies with JEDEC standard no. 8-1A
· CMOS low power consumption
· MULTIBYTEä flow-trough standard pin-out architecture
· Low inductance multiple power and ground pins for minimum noise and ground bounce
· Direct interface with TTL levels
· Bus hold on data inputs (74LVCH32245A only)
· Typical output ground bounce voltage:
  VOLP < 0.8 V at VCC = 3.3 V; Tamb = 25 °C
· Typical output VOH undershoot voltage:
  VOHV > 2 V at VCC = 3.3 V; Tamb = 25 °C
· Power-off disabled outputs, permitting live insertion
· Plastic fine-pitch ball grid array package.


Specifications

Symbol
Parameter
CONDITIONS
Min
Max
Unit
VCC
DC Supply Voltage
-0.5
+6.5
V
VI
DC input voltage
note 1
-0.5
+6.5
V
IIK
DC input diode current
VI < 0
-50
mA
IOK
DC output diode current
VO > VCC or VO < 0; note 1
±50
mA
VO
output voltage
output HIGH or LOW state; note 1
-0.5
VCC + 0.5
V
output 3-state; note 1
-0.5
+6.5
V
IO
DC output source or sink current
VO = 0 to VCC
±50
mA
ICC or IGND
DC VCC or GND current
±100
mA
Tstg
Storage temperature
-65
+150
Ptot
power dissipation
temperature range -40 to +85 °C;
note 2
300
mW
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. Above 70 °C the value of PD derates linearly with 1.8 mW/K.


Description

The 74LVCH32245A is a high-performance, low-power, low-voltage, Si-gate CMOS device, superior to most advanced CMOS compatible TTL families. Inputs can be driven from either 3.3 or 5 V devices. In 3-state operation, outputs can handle 5 V. These features allow the use of these devices in a mixed 3.3 and 5 V environment.

The 74LVCH32245A is a 32-bit transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. The 74LVC(H)32245A features two output enable (nOE) inputs for easy cascading and two send or receive (nDIR) inputs for direction control. nOE controls the outputs so that the buses are effectively
isolated.

To ensure the high-impedance state during power-up or power-down, input nOE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is
determined by the current-sinking capability of the driver.

The 74LVCH32245A bus hold data inputs eliminates the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level (see Fig.2).




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