UPD45128841G5-A10B datasheet(9/92 Pages) NEC

Part #	UPD45128841G5-A10B

Description	128M-bit Synchronous DRAM 4-bank, LVTTL

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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Data Sheet M12650EJBV0DS00

9

µµµµPD45128441, 45128841, 45128163

13. Electrical Specifications ................................................................................................................. 34

13.1

AC Parameters for Read Timing ......................................................................................................... 39

13.2

AC Parameters for Write Timing ......................................................................................................... 41

13.3

Relationship between Frequency and Latency ................................................................................. 42

13.4

Mode Register Set ................................................................................................................................ 43

13.5

Power on Sequence and CBR (Auto) Refresh ................................................................................... 44

13.6

/CS Function ......................................................................................................................................... 45

13.7

Clock Suspension during Burst Read (using CKE Function) .......................................................... 46

13.8

Clock Suspension during Burst Write (using CKE Function) .......................................................... 48

13.9

Power Down Mode and Clock Mask ................................................................................................... 50

13.10 CBR (Auto) Refresh ............................................................................................................................. 51

13.11 Self Refresh (Entry and Exit) ............................................................................................................... 52

13.12 Random Column Read (Page with Same Bank) ................................................................................ 53

13.13 Random Column Write (Page with Same Bank) ................................................................................ 55

13.14 Random Row Read (Ping-Pong Banks) ............................................................................................. 57

13.15 Random Row Write (Ping-Pong Banks) ............................................................................................. 59

13.16 Read and Write ..................................................................................................................................... 61

13.17 Interleaved Column Read Cycle .......................................................................................................... 63

13.18 Interleaved Column Write Cycle ......................................................................................................... 65

13.19 Auto Precharge after Read Burst ........................................................................................................ 67

13.20 Auto Precharge after Write Burst ....................................................................................................... 69

13.21 Full Page Read Cycle ........................................................................................................................... 71

13.22 Full Page Write Cycle ........................................................................................................................... 73

13.23 Byte Write Operation ............................................................................................................................ 75

13.24 Burst Read and Single Write (Option) ................................................................................................ 77

13.25 Full Page Random Column Read ........................................................................................................ 79

13.26 Full Page Random Column Write ....................................................................................................... 81

13.27 PRE (Precharge) Termination of Burst ............................................................................................... 83

14. Package Drawing ............................................................................................................................. 85

15. Recommended Soldering Conditions ........................................................................................... 86

16. Revision History .............................................................................................................................. 87

Similar Part No. - UPD45128841G5-A10B

Manufacturer	Part #	Datasheet	Description
Elpida Memory	UPD45128163-A75L	821Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL
	UPD45128163-E	932Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL
	UPD45128163-I	785Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
	UPD45128163-I-E	962Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
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Similar Description - UPD45128841G5-A10B

Manufacturer	Part #	Datasheet	Description
Elpida Memory	UPD45128163-E	932Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL
	UPD45128163-A75L	821Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL
	PD45128441-T	713Kb / 89P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
	UPD45128163-I	785Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
	UPD45128163-T	774Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
	PD45128441-I	710Kb / 89P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
	PD45128163-SU	701Kb / 87P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
	UPD45128163-I-E	962Kb / 86P	128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
NEC	UPD4564323	1Mb / 84P	64M-bit Synchronous DRAM 4-bank, LVTTL
Elpida Memory	UPD4564163	919Kb / 85P	64M-bit Synchronous DRAM 4-bank, LVTTL

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UPD45128841G5-A10B Datasheet(PDF) 9 Page - NEC

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