Philips CBT3384 User Manual

CBT3384

10-bit bus switch with 5-bit output enables

Rev. 06 — 2 November 2009 Product data sheet

1. General description

The CBT3384 provides ten bits of high-speed TTL-compatible bus switching. The low
ON resistance of the switch allows connections to be made with minimal propagation
delay.

The CBT3384 device is organized as two 5-bit bus switches with two separate output
enable (1OE, 2OE)inputs. When nOE is LOW, the switch is on and port A is connected to
the B port. When nOE is HIGH, each switch is disabled.

The CBT3384 is characterized for operation from −40 °C to +85 °C.

2. Features

n 5 Ω switch connection between two ports
n TTL-compatible control input levels
n Multiple package options
n See CBTD3384 for CBT3384 with level shifting diodes
n Latch-up protection exceeds 100 mA per JESD78
n ESD protection:

u HBM JESD22-A114E exceeds 2000 V
u CDM JESD22-C101C exceeds 1000 V

3. Ordering information

Table 1. Ordering information

Type
number

CBT3384D −40 °C to +85 °C SO24 plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
CBT3384DB −40 °C to +85 °C SSOP24 plastic shrink small outline package; 24 leads;

CBT3384DK −40 °C to +85 °C SSOP24

CBT3384PW −40 °C to +85 °C TSSOP24 plastic thin shrink small outline package; 24 leads;

[1] Also known as QSOP24 package

Package
Temperature range Name Description Version

SOT340-1

body width 5.3 mm

[1]

plastic shrink small outline package; 24 leads; body
width 3.9 mm; lead pitch 0.635 mm

body width 4.4 mm

SOT556-1

SOT355-1

NXP Semiconductors

4. Functional diagram

CBT3384

10-bit bus switch with 5-bit output enables

Fig 1. Logic diagram

5. Pinning information

5.1 Pinning

CBT3384

1

1OE V

2

1B1 2B5

3

1A1 2A5

4

1A2 2A4

5

1B2 2B4

6

1B3 2B3

7

1A3 2A3

8

1A4 2A2

9

1B4 2B2

10

1B5 2B1

11

1A5 2A1

12

GND 2OE

001aak878

1A1

1A5

1OE

2A1

2A5

2OE

3

11

1

14

22

13

2

1B1

10

1B5

15

2B1

23

2B5

001aak877

CBT3384

24

CC

23
22
21
20
19
18
17
16
15
14
13

1

1OE V

2

1B1 2B5

3

1A1 2A5

4

1A2 2A4

5

1B2 2B4

6

1B3 2B3

7

1A3 2A3

8

1A4 2A2

9

1B4 2B2

10

1B5 2B1

11

1A5 2A1

12

GND 2OE

001aak879

24

CC

23
22
21
20
19
18
17
16
15
14
13

Fig 2. Pin configuration for SO24 (SOT137-1) Fig 3. Pin configuration for SSOP24 (SOT340-1) and

TSSOP24 (SOT355-1)

CBT3384_6 © NXP B.V. 2009. All rights reserved.

Product data sheet Rev. 06 — 2 November 2009 2 of 14

NXP Semiconductors

CBT3384

10-bit bus switch with 5-bit output enables

CBT3384

1OE V

1

1B1 2B5

2

1A1 2A5

3

1A2 2A4

4

1B2 2B4

5

1B3 2B3

6

1A3 2A3

7

1A4 2A2

8

1B4 2B2

9

10

1B5 2B1

11

1A5 2A1

12

GND 2OE

001aak880

24
23
22
21
20
19
18
17
16
15
14
13

Fig 4. Pin configuration for SSOP24 (SOT556-1)

5.2 Pin description

Table 2. Pin description

Symbol Pin Description

OE, 2OE 1, 13 output enable input (active LOW)

1
1A1 to 1A5 3, 4, 7, 8, 11 data input/output (A port)
2A1 to 2A5 14, 17, 18, 21, 22 data input/output (A port)
1B1 to 1B5 2, 5, 6, 9, 10 data input/output (B port)
2B1 to 2B5 15, 16, 19, 20, 23 data input/output (B port)
GND 12 ground (0 V)
V

CC

24 positive supply voltage

CC

6. Functional description

Table 3. Function selection

Input Input/output
1OE 2OE 1An, 1Bn 2An, 2Bn

L L 1An = 1Bn 2An = 2Bn
L H 1An = 1Bn Z
H L Z 2An = 2Bn
HHZZ

[1] H = HIGH voltage level; L = LOW voltage level; Z = high-impedance OFF-state.

CBT3384_6 © NXP B.V. 2009. All rights reserved.

Product data sheet Rev. 06 — 2 November 2009 3 of 14

[1]

NXP Semiconductors

7. Limiting values

CBT3384

10-bit bus switch with 5-bit output enables

Table 4. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).
T

=−40°C to +85°C, unless otherwise specified.

amb

[1]

Symbol Parameter Conditions Min Max Unit

V

CC

V

I

I

O

I

IK

T

stg

[1] Stresses beyond those listed may cause permanent damage to the device.These are stress ratings only and functional operation of the

device at these or any other conditions beyond those indicated under Section 8. is not implied. Exposure to absolute-maximum-rated
conditions for extended periods may affect device reliability.

[2] The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

supply voltage −0.5 +7.0 V
input voltage

[2]

−0.5 +7.0 V
output current VO<0V - ±128 mA
input clamping current V

=0V −50 - mA

I/O

storage temperature −65 +150 °C

8. Recommended operating conditions

Table 5. Operating conditions

All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.

Symbol Parameter Conditions Min Typ Max Unit

V
V
V
T

CC
IH
IL

amb

supply voltage 4.5 - 5.5 V
HIGH-state input voltage 2.0 - - V
LOW-state input voltage - - 0.8 V
ambient temperature operating in free air −40 - +85 °C

9. Static characteristics

Table 6. Static characteristics

Voltages are referenced to GND (ground = 0 V).

Symbol Parameter Conditions T

V
I
I

∆I

V

C
C

I
CC

IK

CC

pass

I
io(off)

input clamping voltage VCC= 4.5 V; II= −18 mA - - −1.2 V
input leakage current VCC= 5.5 V; VI= GND or 5.5 V - - ±1 µA
supply current VCC= 5.5 V; IO= 0 mA;

V

I=VCC

additional supply current per input pin; VCC= 5.5 V; one input at

3.4 V, other inputs at V

or GND

or GND

CC

[2]

pass voltage output HIGH; VI=VCC= 5.0 V;

I

= −100 µA

O

input capacitance control pins; VI= 3 V or 0 V - 4.0 - pF
off-state input/output

port off; VI= 3 V or 0 V; nOE = V

CC

capacitance

CBT3384_6 © NXP B.V. 2009. All rights reserved.

Product data sheet Rev. 06 — 2 November 2009 4 of 14

= −40 °C to +85 °C Unit

amb

Min Typ

[1]

Max

--3µA

- - 2.5 mA

3.6 3.9 4.2 V

- 10.0 - pF

NXP Semiconductors

CBT3384

10-bit bus switch with 5-bit output enables

Table 6. Static characteristics

…continued

Voltages are referenced to GND (ground = 0 V).

Symbol Parameter Conditions T

R

ON

[1] All typical values are at VCC=5V, T
[2] This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
[3] Measured by the voltage drop between the nAn and the nBn terminals at the indicated current through the switch. ON resistance is

ON resistance VCC= 4.5 V; VI=0V; II=64mA

= 4.5 V; VI=0V; II=30mA

V

CC

= 4.5 V; VI= 2.4 V; II= −15 mA

V

CC

=25°C.

amb

determined by the lowest voltage of the two (nAn or nBn) terminals.

[3]
[3]
[3]

= −40 °C to +85 °C Unit

amb

Min Typ

[1]

Max

-57Ω

-57Ω

-1015Ω

10. Dynamic characteristics

Table 7. Dynamic characteristics

Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 7.

Symbol Parameter Conditions T

Min Typ Max Min Max

t

pd

propagation delay nAn, nBn to nBn, nAn;

see

Figure 5

[1][2]

VCC = 5.0 V ± 0.5 V - - 0.25 - 0.25 ns

t

PZH

t

PZL

t

PHZ

t

PLZ

OFF-state to HIGH
propagation delay

OFF-state to LOW
propagation delay

HIGH to OFF-state
propagation delay

LOW to OFF-state
propagation delay

nOE to nAn or nBn;
see

Figure 6

= 5.0 V ± 0.5 V 1.2 2.3 5.7 1.2 5.6 ns

V

CC

nOE to nAn or nBn;
see

Figure 6

= 5.0 V ± 0.5 V 1.2 2.3 5.7 1.2 6.0 ns

V

CC

nOE to nAn or nBn;
see

Figure 6

= 5.0 V ± 0.5 V 1.7 3.6 5.2 1.7 5.5 ns

V

CC

nOE to nAn or nBn;
see

Figure 6

= 5.0 V ± 0.5 V 1.7 2.7 5.2 1.7 6.6 ns

V

CC

= 25 °C T

amb

= −40 °C to +85 °C Unit

amb

[1] The propagation delay is the calculated RC time constant of the typical ON resistance of the switch and the specified load capacitance,

when driven by an ideal voltage source (zero output impedance).

[2] tpd is the same as t

CBT3384_6 © NXP B.V. 2009. All rights reserved.

Product data sheet Rev. 06 — 2 November 2009 5 of 14

PLH

and t

PHL

.