ST4G3235_07 STMICROELECTRONICS [STMicroelectronics], ST4G3235_07 Datasheet

ST4G3235_07

Manufacturer Part Number

ST4G3235_07

Description

4-bit dual supply bus buffer level translator with a side series resistor

Manufacturer

STMICROELECTRONICS [STMicroelectronics]

Datasheet

1.ST4G3235_07.pdf (21 pages)

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Features

■

Table 1. Device summary

June 2007

High speed: t

Low power dissipation:

Symmetrical output impedance:

Balanced propagation delays:

Power down protection on inputs and outputs

26Ω series resistor on a side outputs

Operating voltage range:

Max data rates:

380Mbps (1.8V to 3.3V translation)

260Mbps (<1.8V to 3.3V translation)

260Mbps (translate to 2.5V)

210Mbps (translate to 1.5V)

Latch-up performance exceeds 500mA

(JESD 17)

ESD performance:

HBM > 2000V (MIL STD 883 method 3015);

MM > 200V

CCA

PLH

OHA

OHB

CCB

CCA

CCB

CCA

CCB

HS compliant for Flip-Chip package

≅ t

= I

| = I

(Opr) = 1.4V to 3.6V

= 1.65V; V

= 2.75V; V

= 1.65V; V

PHL

ST4G3235BJR

CCB

Part number

OLA

OLB

= 5µA(Max.) at T

= 10mA Min at

= 4mA Min at

= 4.3ns (Max.) at T

CCA

CCB

CCA

= 3.0V

= 1.4V to 3.6V

= 1.4 to 3.6V)

=85°C

4-bit dual supply bus buffer level translator

= 85°C

Flip-Chip11

Package

Rev 7

Description

The ST4G3235 is a dual supply low voltage

CMOS 4-bit bus buffer level translator fabricated

with sub-micron silicon gate and five-layer metal

wiring C

interface between a 3.3V bus and a 2.5V or 1.8V

bus in a mixed 3.3V/1.8V, 3.3V/2.5V, 1.8V/1.4V

and 2.5V/1.8V supply systems, it achieves high

speed operation while maintaining the CMOS low

power dissipation.

This IC is intended for one-way asynchronous

communication between data buses. The input

and output power down protections disable the

device when both power supply are down, so that

the buses are effectively isolated.

The input tolerant buffers allow to translate V

compatible signals and greater signals than V

up/down to V

All inputs are equipped with protection circuits

against static discharge, giving them ESD

immunity and transient excess voltage.

MOS technology. Designed for use as an

with a side series resistor

CCA

and viceversa.

Flip-Chip11

4000 parts per reel

Packaging

ST4G3235

www.st.com

CCB

1/21

Related parts for ST4G3235_07

ST4G3235_07 Summary of contents

Page 1

Features ■ High speed 4.3ns (Max 1.65V 3.0V CCB CCA ■ Low power dissipation 5µA(Max CCA CCB ■ Symmetrical output impedance ...

Page 2

Contents Contents 1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

ST4G3235 1 Pin settings 1.1 Pin connection Figure 1. Pin connection (top through view) 1.2 Pin description Table 2. Pin description Pin N° Symbol Name and function A4 Data ...

Page 4

Device summary 2 Device summary Figure 2. Input equivalent circuit Figure 3. Logic diagram Table 3. Truth table Inputs 1..2 Inputs 3..4 4/21 Referred) CCB L H Referred) CCB L H ST4G3235 ...

ST4G3235 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 ...

Page 6

Maximum rating 3.1 Recommended operating conditions Table 5. Recommended operating conditions Symbol V Supply voltage CCA V Supply voltage CCB V Input voltage (B1, B2 Input voltage (A3, A4 Output voltage (B3, B4 Output ...

Page 7

ST4G3235 4 Electrical characteristics Table 6. DC Specification for V Symbol Parameter V CCB (1) (V) High level 1 input voltage IHA 3.6V (A3-A4) Low level 1 input voltage ILA 3.6V (A3-A4) High level 1.4 to ...

Page 8

Electrical characteristics Table 6. DC Specification for V Symbol Parameter V CCB (1) (V) Power off I leakage 0 OFF current Quiescent 1 CCtA supply current 3.6V 2.7 Maximum 1.95 quiescent ∆I CCtA supply current / Input (An) ...

Page 9

ST4G3235 Table 7. DC Specification for V Symbol Parameter V CCB (1) (V) 1.4 High level 1.8 V input voltage IHB 2.5 (B1-B2) 3.3 1.4 Low level 1.8 V input voltage ILB 2.5 (B1-B2) 3.3 1.4 1.8 2.75 High level ...

Page 10

Electrical characteristics Table 7. DC Specification for V Symbol Parameter V CCB (1) (V) Power off I leakage 0 OFF current Quiescent 1 supply CCtB 3.6V current 2.7 Maximum 1.95 quiescent ∆I supply CCtB current / Input 1.95 ...

Page 11

ST4G3235 Table 8. Dynamic switching characteristics Symbol Parameter Dynamic low level V OLPA Quiet An Output Dynamic low level V OLVA Quiet An Output Dynamic high level V OHVA Quiet An Output Dynamic low level V OLPB Quiet Bn Output ...

Page 12

Electrical characteristics Table 9. AC electrical characteristics Symbol Parameter t t Propagation delay time PLH PHL t t Propagation delay time PLH PHL t t Propagation delay time PLH PHL t ...

Page 13

ST4G3235 Table 10. Capacitance characteristics Symbol Parameter C Input capacitance IN C Output capacitance O C Power dissipation capacitance PD Note defined as the value of the IC’s internal equivalent capacitance which is calculated PD from the ...

Page 14

Test circuit 5 Test circuit Figure 4. Test circuit Table 11. Test circuit C = 10/30pF or equivalent (includes jig and probe capacitance) L Ω 500 or equivalent pulse generator ...

Page 15

ST4G3235 6 Waveforms Table 12. Waveform symbol value Symbol Figure 5. Waveform - propagation delay (f=1MHz; 50% duty cycle 3.0 to 3.6V 2 1.5V ...

Page 16

Package mechanical data 7 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package ...

Page 17

ST4G3235 Figure 6. Marking Note Eco Level Assy Year Assy Week Marking Area; Marking Code 9521 Package mechanical data 17/21 ...

Page 18

Package mechanical data Table 13. Flip-Chip11 Mechical data Dim ccc Figure 7. Package dimension 18/21 mm Min Typ Max 0.585 0.65 0.715 0.21 0.25 0.29 0.40 0.265 0.315 ...

Page 19

ST4G3235 Table 14. Flip-Chip11 tape and reel information Dim Figure 8. Reel dimensions mm. Min Typ Max 178 12.8 13.2 20 12.4 2.29 2.34 2.39 1.65 1.70 ...

Page 20

Revision history 8 Revision history Table 15. Revision history Date 14-Oct-2004 26-Oct-2004 11-Feb-2005 18-Feb-2005 30-Mar-2005 09-May-2005 14-Jun-2007 20/21 Revision 1 First release. 2 Mechanical Data has been updated. 3 Add Tape & Reel and Figure 6. 4 Table 1 has ...

Page 21

ST4G3235 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at ...

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