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PDF MC74VCX16245 Data sheet ( Hoja de datos )
| Número de pieza | MC74VCX16245 | |
| Descripción | LOW-VOLTAGE 1.8/2.5/3.3V 16-BIT TRANSCEIVER | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Advance Information
Low-Voltage 1.8/2.5/3.3V
16-Bit Transceiver
With 3.6V-Tolerant Inputs and
Outputs (3-State, Non-Inverting)
MC74VCX16245
VCX
The MC74VCX16245 is an advanced performance, non–inverting
16–bit transceiver. It is designed for very high–speed, very low–power
operation in 1.8V, 2.5V or 3.3V systems.
When operating at 2.5V (or 1.8V) the part is designed to tolerate
voltages it may encounter on either inputs or outputs when interfacing to
3.3V busses. It is guaranteed to be over–voltage tolerant to 3.6V.
The VCX16245 is designed with byte control. It can be operated as two
separate octals, or with the controls tied together, as a 16–bit wide
function. The Transmit/Receive (T/Rn) inputs determine the direction of
data flow through the bi–directional transceiver. Transmit (active–HIGH)
enables data from A ports to B ports; Receive (active–LOW) enables data
from B to A ports. The Output Enable inputs (OEn), when HIGH, disable
both A and B ports by placing them in a HIGH Z condition.
LOW–VOLTAGE 1.8/2.5/3.3V
16–BIT TRANSCEIVER
• Designed for Low Voltage Operation: VCC = 1.8–3.6V
• 3.6V Tolerant Inputs and Outputs
• High Speed Operation: 2.5ns max for 3.0 to 3.6V
3.2ns max for 2.3 to 2.7V
5.7ns max for 1.8V
• Static Drive:
±24mA Drive at 3.0V
±18mA Drive at 2.3V
±6mA Drive at 1.8V
• Supports Live Insertion and Withdrawal
• IOFF Specification Guarantees High Impedance When VCC = 0V
• Near Zero Static Supply Current in All Three Logic States (20µA)
Substantially Reduces System Power Requirements
• Latchup Performance Exceeds ±300mA
• ESD Performance: Human Body Model >2000V; Machine Model >200V
DT SUFFIX
48–LEAD PLASTIC TSSOP PACKAGE
CASE 1201–01
PIN NAMES
Pins
Function
OEn
T/Rn
A0–A15
B0–B15
Output Enable Inputs
Transmit/Receive Inputs
Side A Inputs or 3–State Outputs
Side B Inputs or 3–State Outputs
This document contains information on a new product. Specifications and information herein are subject to
change without notice.
10/97
© Motorola, Inc. 1997
1
REV 0.1
1 page  
MC74VCX16245
DC ELECTRICAL CHARACTERISTICS (1.8V ≤ VCC < 2.3V)
Symbol
VIH
VIL
VOH
Characteristic
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
VOL
LOW Level Output Voltage
II
IOZ
IOFF
ICC
Input Leakage Current
3–State Output Current
Power–Off Leakage Current
Quiescent Supply Current
Condition
1.8V ≤ VCC < 2.3V
1.8V ≤ VCC < 2.3V
VCC = 1.8V; IOH = –100µA
VCC = 1.8V; IOH = –6mA
VCC = 1.8V; IOL = 100µA
VCC = 1.8V; IOL = 6mA
VCC = 1.8V; 0 ≤ VI ≤ 3.6V
VCC = 1.8V; 0 ≤ VO ≤ 3.6V; VI = VIH or VIL
VCC = 0V; 0V ≤ (VI, VO) ≤ 3.6V
VCC = 1.8V; VI = VCC or GND
VCC = 1.8V; VCC ≤ (VI, VO) ≤ 3.6V
TA = –40°C to +85°C
Min Max
0.7 × VCC
VCC – 0.2
1.4
0.2 × VCC
0.2
0.3
±5.0
±10
10
20
±20
Unit
V
V
V
V
µA
µA
µA
µA
AC CHARACTERISTICS (Note 4.; tR = tF = 2.0ns; CL = 30pF; RL = 500Ω)
Limits
Symbol
Parameter
Waveform
TA = –40°C to +85°C
VCC = 3.0V to 3.6V VCC = 2.3V to 2.7V
Min Max Min Max
VCC = 1.8V
Max
Unit
tPLH
tPHL
Propagation Delay
Input to Output
1 0.8 2.5 1.0 3.2 5.7 ns
0.8 2.5 1.0 3.2
5.7
tPZH
tPZL
Output Enable Time to
High and Low Level
2 0.8 3.8 1.0 4.9 7.5 ns
0.8 3.8 1.0 4.9
7.5
tPHZ
tPLZ
Output Disable Time From
High and Low Level
2 0.8 3.7 1.0 4.2 5.5 ns
0.8 3.7 1.0 4.2
5.5
tOSHL
tOSLH
Output–to–Output Skew
(Note 5.)
0.5 0.5 0.5 ns
0.5 0.5 0.5
4. These AC parameters are preliminary and may be modified prior to release. For CL = 50pF, add approximately 300ps to the AC maximum
specification.
5. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGH–to–LOW (tOSHL) or LOW–to–HIGH (tOSLH); parameter
guaranteed by design.
LCX DATA
BR1339 — REV 2
5
MOTOROLA
5 Page | ||
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| PDF Descargar | [ Datasheet MC74VCX16245.PDF ] | |
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