TC7211AM データシートの表示（PDF） - TelCom Semiconductor, Inc

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TC7211AM

BUS COMPATIBLE 4-DIGIT CMOS DECODER/DRIVER

TelCom Semiconductor, Inc 

BUS COMPATIBLE, 4-DIGIT

CMOS DECODER/DRIVER

1

TC7211AM

ABSOLUTE MAXIMUM RATINGS*

Supply Voltage ........................................................ +6.5V

Input Voltage, Any Terminal

(Note 2) .................................... V+ +0.3V, GND –0.3V

Power Dissipation TA ≤ 70°C (Note 1) ................... 1.23W

Operating Temperature Range ................ –20°C to +85°C

Storage Temperature Range ................. –65°C to +150°C

Lead Temperature (Soldering, 10 sec) ................. +300°C

*Stresses above 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 above

those indicated in the operational sections of the specifications is not

implied. Exposure to absolute maximum rating conditions for extended

periods may affect device reliability.

NOTES: 1. This limit refers to that of the package and will not be realized

during normal operation.

2. Due to the SCR structure inherent in the CMOS process,

connecting any terminal to voltages greater than V+ or less

than GND may cause destructive latch-up. For this reason, it

is recommended that inputs from external sources not oper-

ating on the same power supply not be applied to the device

before its supply is established, and, in multiple supply

systems, the supply to the TC7211AM be turned on first.

2

3

TYPICAL CHARACTERISTICS: All parameters measured with V+ = 5V, TA = 25°C

Symbol

Parameter

Test Conditions

Min

Typ

VSUP

Operating Voltage Range

IOP

Operating Current

IOSCI

Oscillator Input Current

tRFS

Segment Rise/Fall Time

tRFB

Backplane Rise/Fall Time

fOSC

Oscillator Frequency

fBP

Backplane Frequency

Input Characteristics

Display Blank

Pin 36

CL = 200 pF

CL = 5000 pF

Pin 36 Floating

Pin 36 Floating

3

5

—

10

—

±2

—

0.5

—

1.5

—

16

—

125

VIH

Logic “1” High Input Voltage

VIL

Logic “0” Low Input Voltage

IILK

Input Leakage Current

Pins 27–34

3

—

—

—

—

±0.01

CIN

IBPLK

Input Capacitance

BP Input Current

Leakage

Pins 27–34

Measured at Pin 5 With

Pin 36 at GND

—

5

—

±0.01

CBPI

BP Input Capacitance

All Devices

—

200

AC Characteristics

Symbol

Parameter

Test Conditions

tCSA

Chip Select Active Pulse Width (Note 1)

tDS

Data Setup Time

tDH

Data Hold Time

tICS

Inter-Chip Select Time

NOTE: 1. Other chip select (CS) is either held at logic zero or both CS1 and CS2 driven together.

200

—

100

—

10

0

2

—

Max

Unit

6

V

50

±10

µA

µA

4

—

µsec

—

µsec

—

kHz

—

Hz

—

1

V

V

5

±1

µA

—

pF

±1

µA

—

pF

6

—

nsec

—

nsec

—

nsec

—

µsec

7

TELCOM SEMICONDUCTOR, INC.

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