Texas Instruments TCM29C16N, TCM29C16DW, TCM129C16N, TCM29C17N, TCM29C17DW Datasheet

TCM29C13, TCM29C14, TCM29C16, TCM29C17,

TCM129C13, TCM129C14, TCM129C16, TCM129C17

COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Replaces Use of TCM2910A in Tandem With
TCM2912C

D

Reliable Silicon-Gate CMOS Technology

D

Low Power Consumption:

Operating Mode...80 mW Typical
Power-Down Mode...5 mW Typical

D

Excellent Power-Supply Rejection Ratio
Over Frequency Range of 0 Hz to 50 kHz

D

No External Components Needed for
Sample, Hold, and Autozero Functions

D

Precision Internal Voltage References

D

Direct Replacement for Intel 2913, 2914,
2916, and 2917

D

Recommended for Direct V oice
Applications

description

The TCM29C13, TCM29C14, TCM29C16,
TCM29C17, TCM129C13, TCM129C14, TCM129C16, and TCM129C17 are single-chip PCM codecs
(pulse-code-modulated encoders and decoders) and PCM line filters. They provide all the functions required
to interface a full-duplex (4-wire) voice telephone circuit with a TDM (time-division-multiplexed) system, and are
intended to replace the TCM2910A in tandem with the TCM2912C. Primary applications include:

• Line interface for digital transmission and switching of T1 carrier, PABX, and central office telephone

systems

• Subscriber line concentrators

• Digital-encryption systems

• Digital voice-band data-storage systems

• Digital signal processing

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

V

BB

PWRO+
PWRO–

PDN

DCLKR

PCM IN

FSR/TSRE

DGTL GND

V

CC

GSX
ANLG IN–
ANLG GND
TSX/DCLKX
PCM OUT
FSX/TSXE
CLKR/CLKX

TCM29C16, TCM29C17,

TCM129C16, TLC129C17

DW OR N PACKAGE

(TOP VIEW)

1
2
3
4
5
6
7
8
9
10

20
19
18
17
16
15
14
13
12
11

V

BB

PWRO+
PWRO–

GSR
PDN

CLKSEL

DCLKR

PCM IN

FSR/TSRE

DGTL GND

V

CC

GSX
ANLG IN–
ANLG IN+
ANLG GND
SIGX/ASEL
TSX/DCLKX
PCM OUT
FSX/TSXE
CLKR/CLKX

TCM29C13, TCM129C13

DW OR N PACKAGE

(TOP VIEW)

1
2
3
4
5
6
7
8
9
10
11
12

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

V

BB

PWRO+
PWRO–

GSR
PDN

CLKSEL

ANLG LOOP

SIGR

DCLKR

PCM IN

FSR/TSRE

DGTL GND

V

CC

GSX
ANLG IN–
ANLG IN+
ANLG GND
NC
SIGX/ASEL
TSX

/DCLKX
PCM OUT
FSX/TSXE
CLKX
CLKR

TCM29C14, TCM129C14

DW PACKAGE

(TOP VIEW)

NC – No internal connection

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.

Copyright  1996, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

Number of Pins:

24 X
20 X
16 X X

µ-Law/A-Law Coding:

µ-Law X X X

A-Law X X X

Gain Timing Rates:

Variable Mode
64 kHz to 2.048 MHz X X X X

Fixed Mode

1.536 MHz X X

1.544 MHz X X

2.048 MHz X X X X
Loopback Test Capability X
8th-Bit Signaling X

FEATURES TABLE

FEATURE

29C13

129C13

29C14

129C14

29C16

129C16

29C17

129C17

TCM29C13, TCM29C14, TCM29C16, TCM29C17,
TCM129C13, TCM129C14, TCM129C16, TCM129C17
COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

description (continued)

These devices are designed to perform the transmit encoding (A/D conversion) and receive decoding (D/A
conversion) as well as the transmit and receive filtering functions in a pulse-code-modulated system. They are
intended to be used at the analog termination of a PCM line or trunk.

The TCM129C13, TCM129C14, TCM129C16, TCM129C17, TCM29C13, TCM29C14, TCM29C16, and
TCM29C17 provide the band-pass filtering of the analog signals prior to encoding and after decoding. These
combination devices perform the encoding and decoding of voice and call progress tones as well as the
signaling and supervision information.

The TCM29C13, TCM29C14, TCM29C16, and TCM29C17 are characterized for operation from 0°C to 70°C.
The TCM129C13, TCM129C14, TCM129C16, and TCM129C17 are characterized for operation from –40°C
to 85°C.

functional block diagram

Successive

Approximation

Buffer

PWRO+

PWRO–

GSR

GSX

ANLG IN–

ANLG IN+

Transmit Section

Receive Section

SIGR

†

Control
Section

PDN

Control

Logic

DCLKR

PCM IN

Input

Register

Digital-

to-Analog

Control

Logic

Reference

Sample
and Hold
and DAC

Analog-

to-Digital

Control

Logic

Gain

Set

Filter

Reference

FSX/TSXE

Autozero

Output

Register

TSX/DCLKX

PCM OUT

Comparator

Sample
and Hold
and DAC

Filter

SIGX/ASEL

CLKX

CLKSEL

ANLG
LOOP

†

FSR/TSRE

CLKR

†

ANLG

GND

DGTL

GND

V

BB

V

CC

‡

†

TCM29C14 and TCM129C14 only

‡

TCM29C13, TCM29C16, TCM29C17, TCM129C13, TCM129C16, and TCM129C17 only

TCM29C13, TCM29C14, TCM29C16, TCM29C17,

TCM129C13, TCM129C14, TCM129C16, TCM129C17

COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Terminal Functions

TERMINAL NO.

NAME

TCM29C13

TCM129C13

TCM29C14

TCM129C14

TCM29C16

TCM29C17
TCM129C16
TCM129C17

I/O DESCRIPTION

ANLG GND 16 20 13 Analog ground return for all internal voice circuits. Not internally

connected to DGTL GND.

ANLG IN+ 17 21 I Noninverting analog input to uncommitted transmit operational amplifier .

Internally connected to ANLG GND on TCM129C16, TCM29C16,
TCM129C17, and TCM29C17.

ANLG IN– 18 22 14 I Inverting analog input to uncommitted transmit operational amplifier.

ANLG LOOP 7 I Provides loopback test capability. When this input is high, PWRO + is

internally connected to ANLG IN.

CLKR 11 13 9 I Receive master clock and data clock for the fixed-data-rate mode.

Receive master clock only for variable-data-rate mode. CLKR and CLKX
are internally connected together for TCM129C13, TCM129C16,
TCM129C17, TCM29C13, TCM29C16, and TCM29C17.

CLKSEL 6 6 I Clock-frequency selection. Input must be connected to VBB, VCC, or

ground to reflect the master-clock frequency . When tied to VBB, CLK is

2.048 MHz. When tied to GND, CLK is 1.544 MHz. When tied to VCC,
CLK is 1.536 MHz.

CLKX 11 14 9 I Transmit master clock and data clock for the fixed-data-rate mode.

Transmit master clock only for variable-date-rate mode. CLKR and
CLKX are internally connected for the TCM129C13, TCM129C16,
TCM129C17, TCM29C13, TCM29C16, and TCM29C17.

DCLKR 7 9 5 I Fixed or variable-data-rate operation select. When connected to VBB,

the device operates in the fixed-data-rate mode. When DCLKR is not
connected to VBB, the device operates in the variable-data-rate mode,
and DCLKR becomes the receiver data clock. DCLKR then operates at
frequencies from 64 kHz to 2.048 MHz.

DGTL GND 10 12 8 Digital ground for all internal logic circuits. Not internally connected to

ANLG GND.

FSR/TSRE 9 11 7 I Frame synchronization clock input/time-slot enable for receive channel.

In the fixed-data-rate mode, FSR distinguishes between signaling and
nonsignaling frames by a double- or single-length pulse, respectively . In
the variable-data-rate mode, this signal must remain high for the duration
of the time slot. The receive channel enters the standby state when FSR
is TTL low for 300 ms.

FSX/TSXE 12 15 10 I Frame-synchronization clock input/time-slot enable for transmit

channel. Operates independently of, but in an analagous manner to,
FSR/TSRE. The transmit channel enters the standby state when FSX is
low for 300 ms.

GSR 4 4 I Input to the gain-setting network on the output power amplifier.

Transmission level can be adjusted over a 12-dB range depending on the
voltage at GSR.

GSX 19 23 15 O Output terminal of internal uncommitted operational amplifier . Internally ,

this is the voice signal input to the transmit filter.

PCM IN 8 10 6 I Receive PCM input. PCM data is clocked in on eight consecutive

negative transitions of the receive data clock, which is CLKR in
fixed-data-rate timing and DCLKR in variable-data-rate timing.

PCM OUT 13 16 11 O Transmit PCM output. PCM data is clocked out on this output on eight

consecutive positive transitions of the transmit data clock, which is CLKX
in fixed-data-rate timing and DCLKX in variable-data-rate timing.

TCM29C13, TCM29C14, TCM29C16, TCM29C17,
TCM129C13, TCM129C14, TCM129C16, TCM129C17
COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Terminal Functions

TERMINAL NO.

NAME

TCM29C13

TCM129C13

TCM29C14

TCM129C14

TCM29C16

TCM29C17
TCM129C16
TCM129C17

I/O DESCRIPTION

PDN 5 5 4 I Power-down select. The device is inactive with a TTL low-level input to

this terminal and active with a TTL high-level input to the terminal.

PWRO+ 2 2 2 O Noninverting output of power amplifier. Can drive transformer hybrids or

high-impedance loads directly in either a differential or a single-ended
configuration

PWRO– 3 3 3 O Inverting output of power amplifier. Functionally identical with and

complementary to PWRO+.

SIGR 8 O Signaling bit output, receive channel. In a fixed-data-rate mode, outputs

the logical state of the 8th bit (LSB) of the PCM word in the most recent
signaling frame.

SIGX/ASEL 15 18 I A-law and µ-law operation select. When connected to VBB, A-law is

selected. When connected to VCC or GND, µ-law is selected. When not
connected to VBB, a TTL-level input is transmitted as the eighth bit (LBS)
of the PCM word during signaling frames on PCM OUT (TCM29C14 and
TCM129C14 only). SIGX/ASEL is internally connected to provide µ-law
operational for TCM29C16 and TCM129C16 and A-law operation for
TCM29C17 and TCM129C17.

TSX/DCLKX 14 17 12 I/O Transmit channel time-slot strobe (output) or data clock (input) for the

transmit channel. In the fixed-data-rate mode, this terminal is an
open-drain output to be used as an enable signal for a 3-state output
buffer. In the variable-data rate mode, DCLKX becomes the transmit
data clock, which operates at TTL level from 64 kHz to 2.048 MHz.

V

BB

1 1 1 Most negative supply voltage. Input is –5 V ±5%.

V

CC

20 24 16 Most positive supply voltage. Input is 5 V ±5%

TCM29C13, TCM29C14, TCM29C16, TCM29C17,

TCM129C13, TCM129C14, TCM129C16, TCM129C17

COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

†

Supply voltage range, V

CC

(see Note 1) –0.3 V to 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range, V

O

–0.3 V to 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, V

I

–0.3 V to 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital ground voltage range –0.3 V to 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total dissipation at (or below) 25°C free-air temperature 1375 mW. . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T

A

: TCM29Cxx 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TCM129Cxx –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

stg

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: DW or N package 260°C. . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” 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 “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: Voltage values for maximum ratings are with respect to VBB.

recommended operating conditions (see Note 2)

MIN NOM MAX UNIT

Supply voltage, VCC (see Note 3) 4.75 5 5.25 V
Supply voltage, V

BB

–4.75 –5 –5.25 V
Digital ground voltage with respect to ANGL GND 0 V
High-level input voltage, VIH (all inputs except CLKSEL) 2.2 V
Low-level input voltage, VIL (all inputs except CLKSEL) 0.8 V

2.048 MHz V

BB

VBB +0.5

Clock-select input voltage

1.544 MHz 0 0.5

V

1.536 MHz VCC –0.5 V

CC

GSX 10 kΩ

Load resistance, R

L

PWRO+ and/or PWRO– 300 Ω

p

GSX 50

p

Load capacitance, C

L

PWRO+ and/or PWRO– 100

pF

p

p

TCM29Cxx 0 70

°

Operating free-air temperature, T

A

TCM129Cxx –40 85

°C

NOTES: 2. T o avoid possible damage to these CMOS devices and resulting reliability problems, the power-up procedure described in the device

power-up sequence paragraphs later in this document should be followed.

3. V oltage at analog inputs and outputs, VCC and VBB terminals, are with respect to the ANLG GND terminal. All other voltages are
referenced to the digital ground terminal unless otherwise noted.

TCM29C13, TCM29C14, TCM29C16, TCM29C17,
TCM129C13, TCM129C14, TCM129C16, TCM129C17
COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)

supply current, f

DCLK

= 2.048 MHz, outputs not loaded

TCM29Cxx TCM129Cxx

PARAMETER

TEST CONDITIONS

MIN TYP†MAX MIN TYP†MAX

UNIT

Operating 7 9 8 13

I

CC

Supply current

Standby FSX, FSR = VIL after 300 ms 0.5 1 0.7 1.5

mA

CC

from V

CC

Power down

PDN = VIL after 10 µs

0.3 0.8 0.4 1

Operating –7 –9 –8 –13

I

BB

Supply current

Standby FSX, FSR = VIL after 300 ms –0.5 –1 –0.7 –1.5

mA

BB

from V

BB

Power down

PDN = VIL after 10 µs

–0.3 –0.8 –0.4 –1

Operating 70 90 80 130

P

D

Power dissipation

Standby FSX, FSR = VIL after 300 ms 5 10 7 15

mW

Power down

PDN = VIL after 10 µs

3 8 4 10

†

All typical values are at VBB = –5 V , VCC = 5 V, and TA = 25°C.

digital interface

TCM29Cxx TCM129Cxx

PARAMETER

TEST CONDITIONS

MIN TYP†MAX MIN TYP†MAX

UNIT

p

PCM OUT IOH = –9.6 mA 2.4 2.4

VOHHigh-level output voltage

SIGR IOH = –1.2 mA 2.4 2.4

V

V

OL

Low-level output voltage at PCM OUT,
TSX, SIGR

IOL = 3.2 mA 0.4 0.5 V

I

IH

High-level input current, any digital input VI = 2.2 V to V

CC

10 12 µA

I

IL

Low-level input current, any digital input VI = 0 to 0.8 V 10 12 µA

C

i

Input capacitance 5 10 5 10 pF

C

o

Output capacitance 5 5 pF

†

All typical values are at VBB = –5 V , VCC = 5 V, and TA = 25°C.

transmit amplifier input

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

Input current at ANLG IN+, ANLG IN – ±100 nA
Input offset voltage at ANLG IN+, ANLG IN –

VI = –2.17 V to 2.17 V

±25 mV
Common-mode rejection at ANLG IN +, ANLG IN – 55 dB
Open-loop voltage amplification at GSX 5000
Open-loop unity-gain bandwidth at GSX 1 MHz
Input current at ANLG IN+, ANLG IN – 10 MΩ

†

All typical values are at VBB = –5 V , VCC = 5 V, and TA = 25°C.

receive filter output

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

Output offset voltage PWRO+, PWRO– (single ended) Relative to ANLG GND 80 180 mV
Output resistance at PWRO+, PWRO– 1 Ω

†

All typical values are at VBB = –5 V , VCC = 5 V, and TA = 25°C.

TCM29C13, TCM29C14, TCM29C16, TCM29C17,

TCM129C13, TCM129C14, TCM129C16, TCM129C17

COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

7

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

gain and dynamic range, VCC = 5 V, VBB = 5 V, TA = 25°C (unless otherwise noted)
(see Notes 4, 5, and 6)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

p

Signal input = 1.064 Vrms for µ-law,

Encoder milliwatt response (transmit gain tolerance)

g µ ,

Signal input = 1.068 Vrms for A-law

±

0.04±0.02

dBm0

Encoder milliwatt response additional tolerance
(nominal supplies and temperature)

TA = 0°C to 70°C, Supplies = ± 5% ± 0.08 dB

Digital milliwatt response (receive tolerance gain)
relative to zero-transmission-level point

Signal input per CCITT G.711,
Output signal = 1 kHz

±

0.04±0.02

dBm0

Digital milliwatt response variation with temperature
and supplies

TA = 0°C to 70°C, Supplies = ± 5% ±0.08 dB

µ-law

2.76

Zero-transmission-level point, transmit channel

A-law

R

L

=

600 Ω

2.79

,

(0 dBm0)

µ-law

1

dBm

A-law

R

L

=

900 Ω

1.03

µ-law

5.76

Zero-transmission-level point, receive channel

A-law

R

L

=

600 Ω

5.79

(0 dBm0)

µ-law

4

dBm

A-law

R

L

=

900 Ω

4.03

NOTES: 4. Unless otherwise noted, the analog input is a 0-dBm0, 1020-Hz sine wave, where 0 dBm0 is defined as the zero-reference point of

the channel under test. This corresponds to an analog signal input of 1.064 Vrms or an output of 1.503 Vrms.

5. The input amplifier is set for noninverting unity gain. The digital input is a PCM bit stream generated by passing a 0-dBm0, 1020-Hz
sine wave through an ideal encoder.

6. Receive output is measured single ended in the maximum gain configuration. To set the output amplifier for maximum gain, GSR is
connected to PWRO– and the output is taken at PWRO+. All output levels are (sin x)/x corrected.

gain tracking over recommended ranges of supply voltage and operating free-air temperature,
reference level = –10 dBm0

PARAMETER TEST CONDITIONS MIN MAX UNIT

3 ≥ input level ≥ –40 dBm0 ±0.25

Transmit gain-tracking error , sinusoidal input

–40 > input level ≥ –50 dBm0 ±0.5

dB

–50 > input level ≥ –55 dBm0 ±1.2

3 ≥ input level ≥ –40 dBm0 ±0.25

Receive gain-tracking error, sinusoidal input

–40 > input level ≥ –50 dBm0 ±0.5

dB

–50 > input level ≥ –55 dBm0 ±1.2

TCM29C13, TCM29C14, TCM29C16, TCM29C17,
TCM129C13, TCM129C14, TCM129C16, TCM129C17
COMBINED SINGLE-CHIP PCM CODEC AND FILTER

SCTS011H – APRIL 1986 – REVISED JULY 1996

8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

noise over recommended ranges of supply voltage and operating free-air temperature range

PARAMETER TEST CONDITIONS MIN MAX UNIT

Transmit noise, C-message weighted ANLG IN+ = ANLG GND, ANLG IN– = GSX 15 dBrnC0
Transmit noise, C-message weighted with 8-bit-

signaling (TCM29C14 and TCM129C14 only)

ANLG IN+ = ANLG GND, ANLG IN– = GSX,
6th frame signaling

18 dBrnC0
Transmit noise, psophometrically weighted ANLG IN+ = ANLG GND, ANLG IN– = GSX –69 dBm0p
Receive noise, C-message-weighted quiet code

PCM IN = 11111111 (µ-law), PCM IN = 10101010
(A-law), measured at PWRO+

11 dBrnC0

Receive noise, C-message-weighted sign bit toggled

Input to PCM IN is zero code with sign bit toggled at
1-kHz rate

12 dBrmC0
Receive noise, psophometrically weighted PCM = lowest positive decode level –79 dBm0p

power-supply rejection ratio and crosstalk attenuation over recommended ranges of supply
voltage and operating free-air temperature

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

V

supply-voltage rejection ratio,

0 ≤ f < 30 kHz

Idle channel,

pp

–30

CC

ygj ,

transmit channel

30 ≤ f < 50 kHz

Supply signal

=

200 mV

(peak-to-peak)

,

f measured at PCM OUT

–45

dB

V

supply-voltage rejection ratio,

0 ≤ f < 30 kHz

Idle channel,

pp

–30

BB

ygj ,

transmit channel

30 ≤ f < 50 kHz

Supply signal

=

200 mV

(peak-to-peak)

,

f measured at PCM OUT

–55

dB

V

supply-voltage rejection ratio,

0 ≤ f < 30 kHz

Idle channel,

pp

–20

CC

ygj ,

receive channel (single ended)

30 ≤ f < 50 kHz

Supply signal

=

200 mV

(peak-to-peak)

,

f measured at PWRO+

–45

dB

V

supply-voltage rejection ratio,

0 ≤ f < 30 kHz

Idle channel,

pp

–20

BB

ygj ,

receive channel (single ended)

30 ≤ f < 50 kHz

Supply signal

=

200 mV

(peak-to-peak)

,

Narrow band, f measured at PWRO+

–45

dB

Crosstalk attenuation, transmit to receive
(single ended)

ANLG IN+ = 0 dBm0, f = 1.02 kHz,
Unity gain,
PCM IN = lowest decode level,
Measured at PWRO+

71 dB

Crosstalk attenuation, receive to transmit
(single ended)

PCM IN = 0 dBm0, f = 1.02 kHz,
Measured at PCM OUT

71 dB

†

All typical values are at VBB = –5 V , VCC = 5 V, and TA = 25°C.