5 ac characteristics for asynchronous read – Samsung MUXONENAND A-DIE KFM2G16Q2A User Manual

Page 143

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MuxOneNAND2G(KFM2G16Q2A-DEBx)

- 143 -

FLASH MEMORY

MuxOneNAND4G(KFN4G16Q2A-DEBx)

5.5 AC Characteristics for Asynchronous Read

See Timing Diagrams 6.5, 6.6, 6.22 and 6.23.

NOTE :
1) If OE is disabled at the same time or before CE is disabled, the output will go to high-z by t

OEZ

.

If CE is disabled at the same time or before OE is disabled, the output will go to high-z by t

CEZ

.

If CE and OE are disabled at the same time, the output will go to high-z by t

OEZ

.

These parameters are not 100% tested.
2) This Parameter is valid at toggle bit timing in asynchronous read only. (timing diagram 6.21 and 6.22)

5.6 AC Characteristics for Warm Reset (RP), Hot Reset and NAND Flash Core Reset

See Timing Diagrams 6.18, 6.19 and 6.20

NOTE :
1) These parameters are tested based on INT bit of interrupt register. Because the time on INT pin is related to the pull-up and pull-down resistor value.
2) The device may reset if tRP < tRP min(200ns), but this is not guaranteed.

Parameter

Symbol

KFM2G16Q2A/

KFN4G16Q2A

Unit

Min

Max

Access Time from CE Low

tCE

-

76

ns

Asynchronous Access Time from AVD Low

tAA

-

76

ns

Asynchronous Access Time from address valid

tACC

-

76

ns

Read Cycle Time

tRC

76

-

ns

AVD Low Time

tAVDP

12

-

ns

Address Setup to rising edge of AVD

tAAVDS

5

-

ns

Address Hold from rising edge of AVD

tAAVDH

6

-

ns

Output Enable to Output Valid

tOE

-

20

ns

CE Setup to AVD falling edge

tCA

0

-

ns

CE Disable to Output & RDY High Z

1)

tCEZ

-

20

ns

OE Disable to Output High Z

1)

tOEZ

-

15

ns

AVD High to OE Low

tAVDO

0

-

ns

CE Low to RDY Valid

tCER

-

15

ns

WE Disable to AVD Enable

tWEA

15

-

ns

Address to OE low

tASO

2)

10

-

ns

Parameter

Symbol

Min

Max

Unit

RP & Reset Command Latch to BootRAM Access

tReady1

(BootRAM)

-

5

µs

RP & Reset Command Latch(During Load Routines) to INT High (Note1)

tReady2

(NAND Flash

-

10

µs

RP & Reset Command Latch(During Program Routines) to INT High (Note1)

tReady2

(NAND Flash

-

20

µs

RP & Reset Command Latch(During Erase Routines) to INT High (Note1)

tReady2

(NAND Flash

-

500

µs

RP & Reset Command Latch(NOT During Internal Routines) to INT High (Note1)

tReady2

(NAND Flash

-

10

µs

RP Pulse Width (Note2)

tRP

200

-

ns

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