TMS370Cx1x

8-BIT MICROCONTROLLER

SPNS012F – MAY 1987 – REVISED FEBRUARY 1997

38

POST OFFICE BOX 1443

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOL

Low-level output voltage

IOL = 1.4 mA

0.4

V

VOH

High level output voltage

IOH = – 50 µA

0.9 VCC

V

VOH

High-level output voltage

IOH = – 2 mA

2.4

V

0 V

≤ VI ≤ 0.3 V

10

µA

MC

0.3 V < VI ≤ 13 V

650

µA

II

Input current

MC

See Note 4

12 V

≤ VI ≤ 13 V

50

mA

I / O pins

0 V

≤ VI ≤ VCC

± 10

µA

IOL

Low-level output current

VOL = 0.4 V

1.4

mA

IOH

High level output current

VOH = 0.9 VCC

– 50

µA

IOH

High-level output current

VOH = 2.4 V

– 2

mA

See Notes 5 and 6

SYSCLK = 5 MHz

20

36

Supply current (operating mode)

OSC POWER bit = 0 (see Note 7)

See Notes 5 and 6

SYSCLK = 3 MHz

13

25

mA

See Notes 5 and 6

SYSCLK = 0.5 MHz

5

11

See Notes 5 and 6

SYSCLK = 5 MHz

10

17

ICC

Supply current (STANDBY mode)

OSC POWER bit = 0 (see Note 8)

See Notes 5 and 6

SYSCLK = 3 MHz

6.5

11

mA

See Notes 5 and 6

SYSCLK = 0.5 MHz

2

3.5

Supply current (STANDBY mode)

See Notes 5 and 6

SYSCLK = 3 MHz

4.5

8.6

mA

y(

)

OSC POWER bit = 1 (see Note 9)

See Notes 5 and 6

SYSCLK = 0.5 MHz

1.5

3.0

mA

Supply current (HALT mode)

See Note 5

XTAL2 / CLKIN < 0.2 V

1

30

µA

NOTES:

4. Input current IPP is a maximum of 50 mA only when you are programming EPROM.

5. Single chip mode, ports configured as inputs or outputs with no load. All inputs

≤ 0.2 V or ≥ VCC – 0.2V.

6. XTAL2/CLKIN is driven with an external square wave signal with 50% duty cycle and rise and fall times less than 10 ns. Current

can be higher with a crystal oscillator. At 5 MHz SYSCLK, this extra current = 0.01 mA x (total load capacitance + crystal capacitance

in pF).

7. Maximum operating current = 5.6 (SYSCLK) + 8 mA.

8. Maximum standby current = 3 (SYSCLK) + 2 mA. (OSC POWER bit = 0).

9. Maximum standby current = 2.24 (SYSCLK) + 1.9 mA. (OSC POWER bit = 1, only valid up to 3 MHz SYSCLK).