C511 datasheet(32/43 Pages) SIEMENS

32 / 43 page

Semiconductor Group

C511 / C513

Notes:

Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed on the

VOL of ALE

and port 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 case (capacitive loading > 100 pF), the noise

pulse on ALE line may exceed 0.8 V. In such cases it may be desirable to qualify ALE with a schmitt-trigger,

or use an address latch with a schmitt-trigger strobe input.

Capacitive loading on ports 0 and 2 may cause the

VOH on ALE and PSEN to momentarily fall bellow the

0.9

VCC specification when the address lines are stabilizing.

IPD (Power Down Mode) is measured under following conditions:

EA = Port0 =

VCC; RESET = VSS; XTAL2 = N.C.; XTAL1 = VCC; all other pins are disconnected.

ICC (active mode) is measured with:

XTAL1 driven with

tCLCH, tCHCL = 5 ns, VIL = VSS + 0.5 V, VIH = VCC – 0.5 V; XTAL2 = N.C.;

EA = Port0 = RESET =

VCC; all other pins are disconnected. ICC would be slightly higher if a crystal oscillator

is used (appr. 1 mA).

ICC (Idle mode) is measured with all output pins disconnected and with all peripherals disabled;

XTAL1 driven with

tCLCH, tCHCL = 5 ns, VIL = VSS + 0.5 V, VIH = VCC – 0.5 V; XTAL2 = N.C.;

RESET = EA =

VSS; Port0 = VCC; all other pins are disconnected;

ICC Max at other frequencies is given by:

C511/C511A/C513/C513A :

Active mode:

TBD

Idle mode:

TBD

C513A-H :

Active mode:

TBD

Idle mode:

TBD

where

fOSC is the oscillator frequency in MHz. ICC values are given in mA and measured at VCC = 5 V.

This parameter is periodically sampled and not 100% tested.

The typical

CC values are periodically measured at TA = +25 ˚C but not 100% tested.

DC Characteristics (cont’d)

CC = 5 V + 10 %, – 15 %; VSS = 0 V;

A = 0 to + 70 ˚C

Parameter

Symbol

Limit Values

Unit Test Condition

typ. 8)

max.

Power supply current:

C511/C511A/C513/C513A

Active mode, 12 MHz 6)

Idle mode, 12 MHz 6)

Power Down Mode

C513A-H

Active mode, 12 MHz 6)

Idle mode, 12 MHz 6)

Power Down Mode

3.5

TBD

9.5

4.5

TBD

µA

CC = 5 V,

CC = 2 … 5.5 V,

CC = 5 V,

CC = 2 … 5.5 V

C511 Datasheet(PDF) 32 Page - Siemens Semiconductor Group

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