TSC8051C2 datasheet(21/28 Pages) TEMIC

21 / 28 page

TSC8051C2

Rev. A (10 Jan. 97)

Preview

MATRA MHS

Test Conditions

Unit

Max

Typ

Min

Parameter

Symbol

ICC

Power Supply Current (7)

Active Mode 12MHz

Idle Mode

12MHz

TBD

Vcc = 5.5V(1)

Vcc = 5.5V(2)

IPD

Power Down Current

5 (5)

µA

Vcc = 2.0V to 5.5V(3)

Notes for DC Electrical Characteristics

1. ICC is measured with all output pins disconnected; XTAL1 driven

with TCLCH, TCHCL = 5 ns (see Figure 20. ), VIL = VSS +

0.5V, VIH = VCC – 0.5V; XTAL2 N.C.; EA = RST = Port 0 =

VCC. ICC would be slightly higher if a crystal oscillator used

(see Figure 19. ).

2. Idle ICC is measured with all output pins disconnected; XTAL1

driven with TCLCH, TCHCL = 5ns, VIL = VSS + 0.5V, VIH =

VCC–0.5V; XTAL2 N.C; Port 0 = VCC; EA = RST = VSS (see

Figure 20. ).

3. Power Down ICC is measured with all output pins disconnected;

EA = PORT 0 = VCC; XTAL2 NC.; RST = VSS (see

Figure 21. ).

4. Capacitance loading on Ports 0 and 2 may cause spurious noise

pulses to be superimposed on the VOLs of ALE and Ports 1 and

3. The noise is due to external bus capacitance discharging into

the Port 0 and Port 2 pins when these pins make 1 to 0

transitions during bus operation. In the worst cases (capacitive

loading 100pF), the noise pulse on the ALE line may exceed

0.45V with maxi VOL peak 0.6V. A Schmitt Trigger use is not

necessary.

5. Typicals are based on a limited number of samples and are not

guaranteed. The values listed are at room temperature and 5V.

6. Under steady state (non–transient) conditions, IOL must be

externally limited as follows:

Maximum IOL per port pin:

10 mA

Maximum IOL per 8–bit port:

Port 0:

26 mA

Ports 1, 2 and 3:

15 mA

Maximum total IOL for all output pins:

71 mA

If IOL exceeds the test condition, VOL may exceed the related

specification. Pins are not guaranteed to sink current greater than

the listed test conditions.

7. For other values, please contact your sales office.

RST

XTAL2

XTAL1

VSS

VCC

ICC

(NC)

CLOCK SIGNAL

VCC

All other pins are disconnected.

Figure 19. ICC Test Condition, Active Mode.

VCC

RST

XTAL2

XTAL1

VSS

VCC

ICC

(NC)

CLOCK SIGNAL

VCC

All other pins are disconnected.

Figure 20. ICC Test Condition, Idle Mode.

VCC

RST

XTAL2

XTAL1

VSS

VCC

ICC

(NC)

VCC

All other pins are disconnected.

Figure 21. ICC Test Condition, Power Down Mode.

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