ST 74VCX1632245 User Manual

74VCX1632245

16-BIT DUAL SUPPLY BUS TRANSCEIVER

LEVEL TRANSLATOR WITH A SIDE SERIES RESISTOR

■ HIGH SPEED: t

= 3.0V V

V

CCA

■ LOW POWER DISSIPATION:

= I

I

CCA

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I V |I V

■ BALANCED PROPAGATION DELAYS:

t

PLH

■ POWER DOWN PROTECTION ON INPUTS

OHA

CCA

OHA

CCA

≅ t

CCB

| = I

OLA

= 3.0V V

| = I

OLA

= 2.3V V

PHL

= 4.4ns (MAX.) at TA=85°C

PD

= 2.3V

CCB

= 20µA(MAX.) at TA=85°C

= 8mA MIN at

= 1.65V or 2.3V

CCB

= 18mA MIN at

= 1.65V)

CCB

AND OUTPUTS

■ 26Ω SERIES RESISTOR ON A SIDE OUTPUTS

■ OPERATING VOLTAGE RANGE:

(OPR) = 2.3V to 3.6V (1.2V Data

V

CCA

Retention)

(OPR) = 1.65V to 2.7V (1.2V Data

V

CCB

Retention)

■ MAX DATA RATES:

380 Mbps (1.8V to 3.3V translation) 260 Mbps (<1.8V to 3.3V translation) 260 Mbps (Translate to 2.5V) 210 Mbps (Translate to 1.5V) 100 Mbps (Translate to 1.2V)

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 16245

■ LA TCH-UP PERFORMANCE EXCEEDS

500mA (JESD 17)

■ ESD PERFORMANCE:

HBM > 2000V (MIL STD 883 method 3015); MM > 200V

TSSOP µTFBGATFBGA

Table 1: Order Codes

PACKAGE T & R

TSSOP48 74VCX1632245TTR TFBGA54 74VCX1632245LBR

µTFBGA42 74VCX1632245TBR

isolated. The A-port interfaces with the 3V bus, the B-port with the 2.5V and 1.8V bus. All inputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. All floating bus terminals during High Z State must be held HIGH or LOW.

Figure 1: Logic Diagram

DESCRIPTION

The 74VCX1632245 is a dual suppl y low voltage CMOS 16-BIT BUS TRANSCEIVER fabricated with sub-micron silicon gate and five-layer metal wiring C

2

MOS technology. Designed for use as an 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 and 2.5V/

1.8V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation. This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by nDIR inputs. The enable inputs nG

can be used to

disable the device so that the buses are effectively

n = 1, 2

Rev. 14

1/18March 2005

74VCX1632245

Figure 2: Input An d Output Equiva l ent Circuit

Table 2: Pin Description

TFBGA54 PIN° µTFBGA42 PIN N° TSSOP PIN N° SYMBOL NAME AND FUNCTION

A3 B3 1 1DIR Directional Controls

J3 F3 24 2DIR Directional Controls

A6, B5, B6, C5,

C6, D5, D6, E5

E6, F5, F6, G5,

G6, H5, H6, J6

A1, B2, B1, C2,

C1, D2, D1, E2

E1, F2, F1, G2,

G1, H2, H1, J1

J4 F4 25 G

A4 B4 48 G

D3, D4, E3, E4,

F3, F4

A2, A5, B3, B4,

H3, H4, J2, J5

C4, G4 D4 42, 31 V C3, G3 D3 7, 18 V

A4, A5, A6, B5, B6, C5, C6, D5

D6, E5, E6, F5,

F6, G4, G5, G6 A3, A2, A1, B2,

B1, C2, C1, D2 D1, E2, E1, F2,

F1, G3, G2, G1

C3, C4, E3, E4 4, 10, 15, 21,

- - NC No Connected

47, 46, 44, 43,

41, 40, 38, 37

36, 35, 33, 32,

30, 29, 27, 26

2, 3, 5, 6,

8, 9, 11, 12

13, 14, 16, 17,

19, 20, 22, 23

28, 34, 39, 45

1A1, 1A2, 1A3, 1A4,

1A5, 1A6, 1A7, 1A8

2A1, 2A2, 2A3, 2A4,

2A5, 2A6, 2A7, 2A8

1B1, 1B2, 1B3, 1B4,

1B5, 1B6, 1B7, 1B8

2B1, 2B2, 2B3, 2B4,

2B5, 2B6, 2B7, 2B8

2 Output Enable Inputs 1 Output Enable Inputs

GND Ground (0V)

CCA CCB

Data Inputs/Outputs

Positive Supply Voltage Positive Supply Voltage

2/18

Figure 3: Pi n C onnect ion (top view for TSSOP, top through view for BGA)

TSSOP TFBGA

µTFBGA

74VCX1632245

Table 3: Truth Table

INPUTS FUNCTION

G

L L OUTPUT INPUT A = B L H INPUT OUTPUT B = A

HXZZZ

X=Don’ t c a re; Z=High Im pedance

DIR A BUS B BUS

OUTPUT

3/18

74VCX1632245

Table 4: Absolute Maximum Ratings

Symbol Parameter Value Unit

V V

V V V V

I I

CCA CCB

V

I/OA I/OB I/OA I/OB

I

OK

I

OA

I

OB CCA CCB

P

T

Supply Voltage Supply Voltage DC Input Voltage

I

DC I/O Voltage (Output disabled) DC I/O Voltage (Output disabled) DC I/O Voltage -0.5 to V DC I/O Voltage -0.5 to V DC Input Diode Current

IK

DC Output Diode Current DC Output Current DC Output Current DC VCC or Ground Current DC VCC or Ground Current Power Dissipation

d

Storage Temperature

stg

Lead Temperature (10 sec)

L

-0.5 to +4.6 V

-0.5 to +4.6 V + 0.5

CCA

+ 0.5

CCB

− 20 mA

− 50 mA ± 50 mA

± 50 mA ± 100 mA ± 100 mA

400 mW

-65 to +150 °C 260 °C

V V

Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under these conditions is not implied

Table 5: Recommended Operating Conditions

Symbol Parameter Value Unit

V

CCA

V

CCB

V

I/OA

V

I/OB

T

dt/dv Input Rise and Fall Time (note 1) 0 to 10 ns/V

1) VI from 0.8V to 2.0V at V

Supply Voltage Supply Voltage 1.65 to V Input Voltage (Dir, G) 0 to V

I

I/O Voltage 0 to V I/O Voltage 0 to V Operating Temperature

op

=3.0V

CC

2.3 to 3.6 V

CCA CCB CCA CCB

-40 to 85 °C

V V V V

4/18

74VCX1632245

Table 6: DC Specification For V

Symbol Parameter

V

I

V

OHA

OLA

I

OZA

IHA

ILA

IA

High Level Input Voltage (An) (*)

Low Level Input Voltage (An) (*)

High Level Output Voltage

Low Level Output Voltage

Input Leakage Current

High Impedance Output Leakage Current

Power Off

I

OFF

Leakage Current

CCtA

Quiescent Supply Current

Maximum Quiescent

I

∆I

Supply Current / Input (An)

V

CCB

(V)

1.8 2.5 1.6 1.6

2.5 3.3 2.0 2.0

1.8 2.5 0.7 0.7

2.5 3.3 0.8 0.8

2.3 3.0

1.65 3.0

1.65 2.3

2.3 3.0

1.65 3.0

1.65 2.3

2.7 3.6

2.7 3.6 VIA = GND or 3.6V

00VIA = GND to 3.6V

1.95 3.6

1.95 2.7

2.7 3.6

1.95 3.6

1.95 2.7

CCA

Test Condition Value

= 25 °C

T

CCA

(V)

=-100µA

I

O

=-8mA

I

O

I

=-8mA

O

I

=-6mA

O

=100µA

I

O

=8mA

I

O

=8mA

I

O

I

=6mA

O

= VCC or GND

V

I

Min. Typ. Max. Min. Max.

A

2.8 2.8

2.4 2.4

1.8 1.8

0.2 0.2

0.55 0.55

0.40 0.40

± 0.5 ± 5 µA ± 1.0 ± 10 µA

V

= V

IHB

G = V

or V

CCB

ILB

IB

± 1.0 ± 10 µA

V

= GND to 3.6V

IB

G

, Dir = GND to

3.6V

=V =V

=V

CCA CCB

CCA

CCB

or GND or GND

- 0.6V

or GND

V

IA

V

IB

V

IA

V

IB

220µA

-40 to 85 °C

0.75 mA

Unit

V1.8 3.3 2.0 2.0

V1.8 3.3 0.8 0.8

V

(*) VCC range = 3.3±0.3; 2.5 ±0.2V ; 1.8±0.15V

5/18

74VCX1632245

Table 7: DC Specification For V

Symbol Parameter

V

I

V

OHB

OLB

I

OZB

IHB

ILB

IB

High Level Input Voltage (Bn, Dir,

) (*)

G Low Level Input

Voltage (Bn, Dir,

) (*)

G High Level

Output Voltage

Low Level Output Voltage

Input Leakage Current

High Impedance Output Leakage Current

CCtB

Quiescent Supply Current

Maximum Quiescent

I

∆I

Supply Current / Input (Bn, DIR,

)

G

V

CCB

(V)

1.8 2.5

1.8 3.3

2.5 3.3 1.6 1.6

1.8 2.5

1.8 3.3

2.5 3.3 0.7 0.7

2.3 3.0

1.65 3.0

1.65 2.3

2.3 3.0

1.65 3.0

1.65 2.3

2.7 3.6

2.7 3.6 VIA = V

1.95 3.6 VIA =V

1.95 2.7

2.7 3.6

1.95 3.6

1.95 2.7

CCB

Test Condition Value

= 25 °C

T

CCA

(V)

Min. Typ. Max. Min. Max.

0.65V

A

CCB CCB

0.35V

=-100µA

I

O

=-18mA

I

O

I

=-6mA

O

=-6mA

I

O

=100µA

I

O

I

=18mA

O

I

=6mA

O

=6mA

I

O

= VCC or GND

V

I

or V

IHA

2.1 2.1

1.7 1.7

1.25 1.25

ILA

0.2 0.2

0.60 0.60

0.30 0.30

± 0.5 ± 5 µA ± 1.0 ± 10 µA

VIB = GND or 2.7V

G

= V

CCB

220µA

V

=V

IB

Dir or G

CCA CCB

=V

or GND or GND

or

CCB

GND

=V

CCB

CCA

- 0.6V

or GND

V

IB

V

=V

IA

CCB CCB

-40 to 85 °C

0.65V

CCB

0.65V

CCB

0.35V

CCB

0.35V

CCB

0.75 mA

Unit

V

(*) VCC range = 3.3±0.3; 2.5 ±0.2V ; 1.8±0.15V

6/18