HM62W16255HC datasheet, PDF - EEWORLD Datasheet

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HM62W16255HC: Description4M High Speed SRAM (256-kword x 16-bit); File Size99KB，18 Pages; ManufacturerHitachi （Renesas ）; Websitehttp://www.renesas.com/eng/

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HM62W16255HC Overview

4M High Speed SRAM (256-kword x 16-bit)

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HM62W16255HC Series

4M High Speed SRAM (256-kword

16-bit)

ADE-203-1200 (Z)

Preliminary

Rev. 0.0

Sep. 1, 2000

Description

The HM62W16255HC is a 4-Mbit high speed static RAM organized 256-kword

16-bit. It has realized high

speed access time by employing CMOS process (6-transistor memory cell) and high speed circuit designing

technology. It is most appropriate for the application which requires high speed, high density memory and

wide bit width configuration, such as cache and buffer memory in system. The HM62W16255HC is

packaged in 400-mil 44-pin SOJ and 400-mil 44-pin plastic TSOPII for high density surface mounting.

Features

•

Single 3.3 V supply: 3.3 V

0.3 V

•

Access time: 10 ns (max)

•

Completely static memory



No clock or timing strobe required

•

Equal access and cycle times

•

Directly TTL compatible



All inputs and outputs

•

Operating current: 145 mA (max)

•

TTL standby current: 40 mA (max)

•

CMOS standby current: 5 mA (max)

: 1 mA (max) (L-version)

•

Data retention current: 0.6 mA (max) (L-version)

•

Data retention voltage: 2.0 V (min) (L-version)

•

Center V

and V

type pinout

Preliminary: The specification of this device are subject to change without notice. Please contact your nearest

Hitachi’s Sales Dept. regarding specification.

HM62W16255HC Related Products

	HM62W16255HC	HM62W16255HCJP-10	HM62W16255HCLTT-10	HM62W16255HCLJP-10	HM62W16255HCTT-10
Description	4M High Speed SRAM (256-kword x 16-bit)	4M High Speed SRAM (256-kword x 16-bit)	4M High Speed SRAM (256-kword x 16-bit)	4M High Speed SRAM (256-kword x 16-bit)	4M High Speed SRAM (256-kword x 16-bit)
Maker	-	Hitachi （Renesas ）	Hitachi （Renesas ）	Hitachi （Renesas ）	Hitachi （Renesas ）
Parts packaging code	-	SOJ	TSOP2	SOJ	TSOP2
package instruction	-	SOJ, SOJ44,.44	TSOP2, TSOP44,.46,32	SOJ, SOJ44,.44	TSOP2, TSOP44,.46,32
Contacts	-	44	44	44	44
Reach Compliance Code	-	unknow	unknow	unknow	unknown
ECCN code	-	3A991.B.2.A	3A991.B.2.A	3A991.B.2.A	3A991.B.2.A
Maximum access time	-	10 ns	10 ns	10 ns	10 ns
I/O type	-	COMMON	COMMON	COMMON	COMMON
JESD-30 code	-	R-PDSO-J44	R-PDSO-G44	R-PDSO-J44	R-PDSO-G44
length	-	28.33 mm	18.41 mm	28.33 mm	18.41 mm
memory density	-	4194304 bi	4194304 bi	4194304 bi	4194304 bit
Memory IC Type	-	CACHE SRAM	CACHE SRAM	CACHE SRAM	CACHE SRAM
memory width	-	16	16	16	16
Number of functions	-	1	1	1	1
Number of terminals	-	44	44	44	44
word count	-	262144 words	262144 words	262144 words	262144 words
character code	-	256000	256000	256000	256000
Operating mode	-	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Maximum operating temperature	-	70 °C	70 °C	70 °C	70 °C
organize	-	256KX16	256KX16	256KX16	256KX16
Output characteristics	-	3-STATE	3-STATE	3-STATE	3-STATE
Package body material	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	SOJ	TSOP2	SOJ	TSOP2
Encapsulate equivalent code	-	SOJ44,.44	TSOP44,.46,32	SOJ44,.44	TSOP44,.46,32
Package shape	-	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	-	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE
Parallel/Serial	-	PARALLEL	PARALLEL	PARALLEL	PARALLEL
power supply	-	3.3 V	3.3 V	3.3 V	3.3 V
Certification status	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	3.76 mm	1.2 mm	3.76 mm	1.2 mm
Maximum standby current	-	0.005 A	0.001 A	0.001 A	0.005 A
Minimum standby current	-	2 V	2 V	2 V	2 V
Maximum slew rate	-	0.145 mA	0.145 mA	0.145 mA	0.145 mA
Maximum supply voltage (Vsup)	-	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage (Vsup)	-	3 V	3 V	3 V	3 V
Nominal supply voltage (Vsup)	-	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	-	YES	YES	YES	YES
technology	-	CMOS	CMOS	CMOS	CMOS
Temperature level	-	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	-	J BEND	GULL WING	J BEND	GULL WING
Terminal pitch	-	1.27 mm	0.8 mm	1.27 mm	0.8 mm
Terminal location	-	DUAL	DUAL	DUAL	DUAL
width	-	10.16 mm	10.16 mm	10.16 mm	10.16 mm

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