AD402M91RBA-5中文资料(11)

AC Characteristics

(Ta = 0 to + 70°C, Vcc = 3.3V %, V±10ss = 0V) *1, *2, *3, *4

Test conditions

Output load: one TTL Load and 100pF (VCC = 3.3V ±10%) Input timing reference levels:

VIH = 2.0V, VIL = 0.8V (VCC = 3.3V ±10%) Output timing reference levels:VOH = 2.0V, VOL = 0.8V

Read, Write, Read- Modify- Write and Refresh Cycles(Common Parameters)

AD404M42V -5

Parameter

Random read or write cycle timeRAS precharge time

CAS precharge time in normal modeRAS pulse widthCAS pulse widthRow address setup timeRow address hold timeColumn address setup timeColumn address hold timeRAS to CAS delay time

RAS to column address delay timeColumn address to RAS lead timeRAS hold timeCAS hold time

CAS to RAS precharge timeOE to Din delay timeTransition time (rise and fall)Refresh period

Refresh period (S- Version)CAS to output in Low- ZCAS delay time from DinOE delay time from Din

SymboltRCtRPtCPNtRAStCAStASRtRAHtASCtCAHtRCDtRADtRALtRSHtCSHtCRPtOEDtTtREFtREFtCLZtDZCtDZO

Min84301050808081210258385121--000

Max

---1000010000

----3725-----5032128---Min1044010601001001014123010405151--000-6Max

---1000010000

----4530-----5032128---nsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnsnsmsmsnsnsns

111089756

Unit

Notes

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