M62021 Ver la hoja de datos (PDF) - Renesas Electronics

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componentes Descripción

Fabricante

M62021

System Reset IC with Switch for Memory Backup

Renesas Electronics 

M62021L/P/FP

Test Circuit

SW2

Vm1

V1

V1

A

Im1

SW1

2

VIN 3

R1

R2

RES

7

RES

5

M62021

Com

–

+

1.24V

Reset

circuit

Delay

circuit

6

GND

V Vm2

1 VOUT

SW5

D1

2 VBAT

1

SW4

3

2

CS

8

Im2 A

V2

V Vm3

IF2

Ct

4

SW3

+

4.7µF

1 SW6

2

3

SW7

1

4

2

5

Vm4

6 CRT V

IF1

Figure 1 Test Circuit

Switch Matrix

SW

Measuring

Item

Symbol

V1

V2

IF1

IF2

1

2

3

4

5

6

7 Instrument

Circuit current

4V

ICC

—

—

—

1 ON OFF 1 OFF 1

1 Im1

5V

Detection voltage

(VIN negative-going)

VOUT

CS

Ct

RES

RES

VS

(VSL)

Decrease

—

from 5V

2

3

*2

Vm4

—

—

1 ON OFF 1 OFF 4

1 CRT

5

Vm1

6

Difference between input and output

voltage

VDROP

5V

—

–50mA —

1 ON OFF 1 OFF 2

2 Vm2

–80mA

Ct output voltage (high level)

Ct output voltage (low level)

RES output voltage (high level)

RES output voltage (low level)

VOH(Ct)

5V

VOL(Ct)

4V

VOH(RES)

4V

VOL(RES)

5V

—

—

—

1 ON OFF 1 OFF 4

1 Vm4

—

1

—

—

1 ON OFF 1 OFF 5

Vm4

1mA

2

RES output voltage (high level)

RES output voltage (low level)

VOH(RES)

5V

VOL(RES)

4V

—

1

—

—

1 ON OFF 1 OFF 6

Vm4

1mA

2

CS output voltage (high level) *1

VOH(CS)

4V

0V

—

3V

—

1

—

1 ON OFF 1 OFF 3

Vm4

CS output voltage (low level)

VOL(CS)

5V

—

1mA

2

Backup diode leakage current

IR

5V

3V

—

—

1 ON OFF 2 OFF 1

1 Im2

0V

Backup diode forward direction

voltage

VF

0V

—

—

10µA 1 ON OFF 3 ON 1

1 Vm3

Delay time

Response time

VOUT

CS tpd

RES td

RES

2

2

ON

3

—

—

—

—

*3

ON

*4

1 OFF

5

1 CRT

6

Notes: 1. To measure VOH(CS), insert a 1 MΩ resistor between the CS pin and GND.

2. While monitoring each output by Vm4 or CRT, measure the input voltage Vm1 when the output goes from H

to L and L to H. Regarding VSH, raise VIN from 4 V and measure the input voltage Vm1 when the output goes

from H to L and L to H. ∆VS is VSH – VSL.

3. To measure delay time, change VIN from 0 V to 5 V and compare, with respect to each pin, the positive-going

edge observed on a monitor with that of VIN. To measure response time, change VIN from 5 V to 4 V and

compare, with respect to each pin, the negative-going edge observed on a monitor with that of VIN.

4. Set the switch to OFF when measuring response time.

REJ03D0784-0200 Rev.2.00 Jun 15, 2007

Page 4 of 13

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