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M40SZ100Y, M40SZ100W

Power-on Reset Output

All microprocessors have a reset input which forc-

es them to a known state when starting. The

M40SZ100Y/W has a reset output (RST) pin which

page 7). This signal is an open drain configuration.

chosen to control the rise time. This signal will be

Reset Input (RSTIN)

The M40SZ100Y/W provides one independent in-

put which can generate an output reset. The dura-

tion and function of this reset is identical to a reset

generated by a power cycle. Table 7 and Figure 12

illustrate the AC reset characteristics of this func-

reset condition. RSTIN is internally pulled up to

Figure 12. RSTIN Timing Waveform

Note: With pull-up resistor

Table 7. Reset AC Characteristics

2. Pulse width less than 50ns will result in no RESET (for noise immunity).

Symbol

Min

Max

Unit

(2)

RSTIN Low to RSTIN High

200

ns

(3)

RSTIN High to RST High

40

200

ms

AI04768

RST

(1)

RSTIN

tRLRH

tR1HRH