TC70 查看數據表（PDF） - TelCom Semiconductor Inc => Microchip

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TC70

MICROMASTER™ – SYSTEM SUPERVISOR WITH POWER SUPPLY MONITOR, WATCHDOG AND BATTERY BACKUP

TelCom Semiconductor Inc => Microchip 

TC70/71

MICROMASTER™ – SYSTEM SUPERVISOR

WITH POWER SUPPLY MONITOR, WATCHDOG

AND BATTERY BACKUP

ABSOLUTE MAXIMUM RATINGS*

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

Voltage (Any Pin) with Respect to

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

Ground ................................ GND – 0.3 to VCC + 0.3V

Operating Temperature Range ............... – 40°C to +85°C

*This is a stress rating 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

ELECTRICAL CHARACTERISTICS:

Conditions for extended periods may affect device reliability.

Recommended DC Operations: TA = TMIN to TMAX, unless otherwise specified.

Symbol Parameter

Test Conditions

Min

Typ

Max

Unit

VCC

Supply Voltage

VIH

Input HIGH Level

VIH

Input HIGH Level

VIL

Input LOW Level

Note 1

CEI, WDD (Note 1)

RS (Note 1)

CEI, WDD, RS (Note 1)

4.5

5.0

5.5

V

2.5

—

—

V

2.2

—

—

V

—

—

0.8

V

ELECTRICAL CHARACTERISTICS:

DC: TA = TMIN to TMAX, VCC = 4.5V to 5.5V, unless otherwise specified.

Symbol Parameter

Test Conditions

ICC1

ICC2

IIH

IIL

IIH

ISTBY

ISTBY

Operating Current

Operating Current in

Battery Backup Mode

Input Leakage

Input Leakage

Input Leakage

Battery Standby Current

Battery Standby Current

Notes 2, 3

VCC = 0; VBATT = 2.8V; (Note 3)

CEI

CEI

RS

5.5V > VCC > VBATT + 0.2V

5.5V > VCC > VBATT + 0.2V

TA = 25°C

Min

—

—

—

—

—

– 1.0

– 0.1

Typ

5

0.01

4

1

1

—

—

Max

6.5

0.20

7

—

—

0.02

0.02

Unit

mA

µA

µA

µA

µA

µA

µA

ELECTRICAL CHARACTERISTICS:

DC: Power Supply Monitor, EXT. RESET and Watchdog: TA = TMIN to TMAX, VCC = 4.5V to 5.5V, unless otherwise specified.

Symbol Parameter

Test Conditions

Min

Typ

Max

Unit

IOL

IOH

WDDI

VSTH

VSTL

VCCTRIP

Output Current 0.4V

(RS, TDO, CEO, PF Pins)

Output Current 2.4V

(TDO, CEO, PF Pins)

WDD Input Current

RS Strobe (HIGH) Level

RS Strobe (LOW) Level

VCC Trip Point

VOL = 0.4V

VOH = 2.4V

WDD = GND

WDD = VCC

Figure 3 (Note 1)

Figure 3 (Note 1)

(Note 1) 0°C ≤ TA ≤ 70°C

– 40°C ≤ TA ≤ 85°C

2

5

—

mA

2

3

—

mA

– 120

—

—

µA

—

—

25

VDD – 0.5

—

—

V

2.2

—

VDD – 1.8

V

4.25

—

4.49

4.20

4.49

ELECTRICAL CHARACTERISTICS:

DC: Battery Backup and Threshold Detector: TA = TMIN to TMAX, VCC = 4.5V to 5.5V, unless otherwise specified.

Symbol Parameter

Test Conditions

Min

Typ

Max Unit

VOUT1

VOUT2

VCCO Output Voltage

IOUT = 1mA

IOUT = 50mA

VCC – 0.3 VCC – 0.1

—

V

VCC – 0.5 VCC – 0.20 —

VOUT in Battery Backup Mode

IOUT = 250µA, VCC < VBATT – 0.2, VBATT = 2.8V VBATT – 0.1 VBATT – 0.02 —

V

5-8

TELCOM SEMICONDUCTOR, INC.

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