ST 54VCXH162244 User Manual

Low voltage CMOS 16-bit bus buffer (3-state non inverter)

with 3.6 V tolerant inputs and outputs

Features

■ 1.65 to 3.6 V inputs and outputs

■ High speed:

–t

= 3.4 ns at V

PD

–t

= 3.8 ns at V

PD

■ Power down protection on inputs and outputs

■ Symmetrical output impedance:

–|I
–|I

■ 26 Ω serie resistors in outputs

■ Operating voltage range:

–V

■ Pin and function compatible with 54 series

| = IOL = 12 mA (Min.) at VCC = 3.0 V

OH

| = IOL = 8 mA (Min.) at VCC = 2.3 V

OH

(Opr) = 1.65 V to 3.6 V

CC

H162244

■ Bus hold provided on data inputs

■ Cold spare function

■ Latch-up performance exceeds

300 mA (JESD 17)

■ ESD performance:

– HBM > 2000 V

(Mil Std 883 Method 3015); MM > 200 V

■ 300 krad Mil1019.6 condition A, (RHA QML

qualification extension undergone)

■ No SEL, no SEU and no SET under 110

Mev/cm2/mg LET heavy ions irradiation

■ QML qualified product

■ SMD 5962-05210

■ 100 mV typical input hysteresis

= 3.0 to 3.6 V

CC

= 2.3 to 2.7 V

CC

54VCXH162244

Flat-48

The upper metallic lid is not electrically connected to any

pins, nor to the IC die inside the package.

Description

The 54VCXH162244 is a low voltage CMOS 16
bit bus buffer (non inverted) fabricated with sub­micron silicon gate and five-layer metal wiring
C²MOS technology. It is ideal for low power and
very high speed 1.65 to 3.6 V applications; it can
be interfaced to 3.6 V signal environment for both
inputs and outputs. Any nG
governs four BUS buffers. Output enable input
(nG

) tied together gives full 16-bit operation.

When nG

is low, the outputs are on. When nG is
high, the output are in high impedance state. This
device is designed to be used with 3 state
memory address drivers, etc. Bus hold on data
inputs is provided in order to eliminate the need
for external pull-up or pull-down resistor. The
device circuits is including 26 Ω series resistance
in the outputs. These resistors permit to reduce
line noise in high speed applications. All inputs
and outputs are equipped with protection circuits
against static discharge, giving them 2 kV ESD
immunity and transient excess voltage.

output control

July 2011 Doc ID 10652 Rev 9 1/18

www.st.com

18

Contents 54VCXH162244

Contents

1 Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

8 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

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54VCXH162244 Logic symbols and I/O equivalent circuit

1 Logic symbols and I/O equivalent circuit

Figure 1. IEC logic symbols

Figure 2. Input and output equivalent circuit

Doc ID 10652 Rev 9 3/18

Pin settings 54VCXH162244

2 Pin settings

2.1 Pin connection

Figure 3. Pin connection (top through view)

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54VCXH162244 Pin settings

2.2 Pin description

Table 1. Pin description

Pin n° Symbol Name and function

11GOutput enable input

2, 3, 5, 6 1Y1 to 1Y4 Data outputs

8, 9, 11, 12 2Y1 to 2Y4 Data outputs

13, 14, 16, 17 3Y1 to 3Y4 Data outputs

19, 20, 22, 23 4Y1 to 4Y4 Data outputs

30, 29, 27, 26 4A1 to 4A4 Data outputs

36, 35, 33, 32 3A1 to 3A4 Data outputs

41, 40, 38, 37 2A1 to 2A4 Data outputs

47, 46, 44, 43 1A1 to 1A4 Data outputs

4, 10, 15, 21, 28, 34, 39, 45 GND Ground (0 V)

7, 18, 31, 42 V

2.3 Truth table

Table 2. Truth table

24 4G

25 3G

48 2G

CC

Output enable input

Output enable input

Output enable Input

Positive supply voltage

Inputs Output

GAnYn

LLL

LHH

HXZ

Note: X = Do not care; Z = High impedance

Doc ID 10652 Rev 9 5/18

Maximum rating 54VCXH162244

3 Maximum rating

Stressing the device above the rating listed in the “absolute maximum ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.

Table 3. Absolute maximum ratings

Symbol Parameter Value Unit

I

CC

I

V

V

V

I

I

GND

P

T

T

Supply voltage -0.5 to +4.6 V

CC

DC input voltage -0.5 to +4.6 V

V

I

DC output voltage (OFF state) -0.5 to +4.6 V

O

DC output voltage (high or low state)

O

DC input diode current - 50 mA

IK

DC output diode current

OK

DC output current ± 50 mA

I

O

or

DC VCC or ground current per supply pin ± 100 mA

Power dissipation 400 mW

D

Storage temperature -65 to +150 °C

stg

Lead temperature (10 sec) 260 °C

L

(2)

(1)

1. IO absolute maximum rating must be observed

2. VO < GND, VO > V

CC

3.1 Recommended operating conditions

Table 4. Recommended operating conditions

-0.5 to VCC + 0.5 V

- 50 mA

Symbol Parameter Value Unit

V

V

V

I

OH

I

OH

T

dt/dv Input rise and fall time

1. VIN from 0.8 V to 2 V at VCC = 3.0 V

Supply voltage 1.8 to 3.6 V

CC

Input voltage -0.3 to 3.6 V

V

I

Output voltage (OFF state) 0 to 3.6 V

O

Output voltage (high or low state) 0 to V

O

, I

High or low level output current (VCC = 3.0 to 3.6 V) ± 12 mA

OL

, I

High or low level output current (VCC = 2.3 to 2.7 V) ± 8mA

OL

Operating temperature -55 to 125 °C

op

(1)

6/18 Doc ID 10652 Rev 9

CC

V

0 to 10 ns/V