MC146818AP 데이터 시트보기 (PDF) - Motorola => Freescale

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MC146818AP

REAL-TIME CLOCK PLUS RAM

Motorola => Freescale 

TABLE 1 – SWITCHING CHARACTERISTICS (VSS=O Vdc, TA= TL to TH)

-.

VDD=3.O Vdc

VDD = 5.0 Vdc & 10”A

I

Description

I Symbol I Min I Max I Unit I Min I Max I Unit

I Oscillator Startu~

1Reset Pulse Width

Reset Delay Time

DA,.,-. C----

D, ,1--

!AI; A+L

ltRrl–

lTBDlms]–

I tRWL [ TBD I — I KS I

tRLH I TBD I –

I +-, .,,

TDn I

I ps I

..-

ll~lmsl

51–

51–

CI

I ps I

&s

I ‘i\!

DS

RESET

.—

ITQ

VDD

2k

(KQ OnIV)

All Outputs Except OSC2 (See Figure 10)

m MOTOROLA

—

MM D7000

or Equivalent

..

L 130pF

T

.—

Semiconductor Products Inc.

6

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