Z86C9620VSC datasheet(31/46 Pages) ZILOG

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Z86C61/62/96

Z8® MICROCONTROLLER

AC CHARACTERISTICS

External I/O or Memory Read and Write Timing

Z86C61/62/96 (20 MHz)

A = 0°CTA = –40°C

to +70

°C

to +105

°C

20 MHz

Symbol

Parameter

Min

Max

Min

Max

Units

Notes

TdA(AS)

Address Valid to /AS rise Delay

[2,3]

TdAS(A)

/AS rise to Address Float Delay

[2,3]

TdAS(DR)

/AS rise to Read Data Req’d Valid

120

[1,2,3]

TwAS

/AS Low Width

[2,3]

TdAZ(DS)

Address Float to /DS fall

TwDSR

/DS (Read) Low Width

105

[1,2,3]

TwDSW

/DS (Write) Low Width

[1,2,3]

TdDSR(DR)

/DS fall to Read Data Req’d Valid

[1,2,3]

ThDR(DS)

Read Data to /DS rise Hold Time

[2,3]

TdDS(A)

/DS rise to Address Active Delay

[2,3]

TdDS(AS)

/DS rise to /AS fall Delay

[2,3]

TdR/W(AS)

R//W Valid to /AS rise Delay

[2,3]

TdDS(R/W)

/DS rise to R//W Not Valid

[2,3]

TdDW(DSW)

Write Data Valid to /DS fall (Write) Delay

[2,3]

TdDS(DW)

/DS rise to Write Data Not Valid Delay

[2,3]

TdA(DR)

Address Valid to Read Data Req’d Valid

150

[1,2,3]

TdAS(DS)

/AS rise to /DS fall Delay

[2,3]

TdDM(AS)

/DM Valid to /AS rise Delay

[2,3]

Notes:

[1] When using extended memory timing add 2 TpC.

[2] Timing numbers given are for minimum TpC.

[3] See clock cycle dependent characteristics table.

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