HM6216255HTTI-15 HITACHI, HM6216255HTTI-15 Datasheet

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HM6216255HTTI-15

Manufacturer Part Number
HM6216255HTTI-15
Description
4M high speed SRAM (256-kword x 16-bit)
Manufacturer
HITACHI
Datasheet

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Part Number:
HM6216255HTTI-15
Manufacturer:
HIT
Quantity:
900
Description
The HM6216255HI Series is a 4-Mbit high speed static RAM organized 256-k word
high speed access time by employing CMOS process (4-transistor + 2-poly resistor 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. It is packaged
in 400-mil 44-pin plastic SOJ and 400-mil 44-pin plastic TSOPII.
Features
Single 5.0 Vsupply : 5.0 V 10 %
Access time: 12/15 ns (max)
Completely static memory
Equal access and cycle times
Directly TTL compatible
Operating current: 200/180 mA (max)
TTL standby current: 60/50 mA (max)
CMOS standby current: 5 mA (max)
Center V
Temperature range: –40 to 85 C
No clock or timing strobe required
All inputs and outputs
CC
and V
4M high Speed SRAM (256-kword
SS
type pinout
HM6216255HI Series
16-bit)
ADE-203-1037A (Z)
16-bit. It has realized
Apr. 15, 1999
Rev. 1.0

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HM6216255HTTI-15 Summary of contents

Page 1

HM6216255HI Series 4M high Speed SRAM (256-kword Description The HM6216255HI Series is a 4-Mbit high speed static RAM organized 256-k word high speed access time by employing CMOS process (4-transistor + 2-poly resistor memory cell) and high speed circuit designing ...

Page 2

... HM6216255HI Series Ordering Information Type No. HM6216255HJPI-12 HM6216255HJPI-15 HM6216255HTTI-12 HM6216255HTTI-15 Pin Arrangement HM6216255HJPI Series I/O1 7 I/O2 8 I/ I/O5 13 I/O6 14 I/ (Top View) 2 Access time A17 43 A16 42 A15 I/O16 37 I/O15 36 I/O14 35 I/O13 I/O12 31 I/O11 30 I/O10 29 I/ A14 26 A13 25 A12 24 A11 23 A10 ...

Page 3

Pin Description Pin name Function A0 to A17 Address input I/O1 to I/O16 Data input/output CS Chip select OE Output enable WE Write enable Block Diagram (LSB) A1 A17 A7 A11 A16 (MSB) I/ ...

Page 4

HM6216255HI Series Operation Table Mode H Standby Output disable Read Lower byte read Upper byte read ...

Page 5

Recommended DC Operating Conditions (Ta = –40 to +85 C) Parameter Supply voltage Input voltage Notes (min) = –2.0 V for pulse width (under shoot (max 2.0 V for pulse width (over ...

Page 6

HM6216255HI Series AC Characteristics (Ta = – Test Conditions Input pulse levels: 3.0 V/0.0 V Input rise and fall time Input and output timing reference levels: 1.5 V Output load: See figures (Including scope ...

Page 7

Write Cycle Parameter Write cycle time Address valid to end of write Chip select to end of write Write pulse width Byte select to end of write Address setup time Write recovery time Data to write time overlap Data hold ...

Page 8

HM6216255HI Series Timing Waveforms Read Timing Waveform (1) ( Address High Impedance Dout (Lower byte) High Impedance Dout (Upper byte Valid address ACS ...

Page 9

Read Timing Waveform (2) ( Address CS OE High Impedance Dout (Lower/Upper byte UB Valid address ACS ...

Page 10

HM6216255HI Series Write Timing Waveform (1) (LB, UB Controlled) Address WE Dout (Lower byte) Dout (Upper byte) Din (Lower byte) Din (Upper byte Valid address ...

Page 11

Write Timing Waveform (2) (WE Controlled) Address t 3 WE* 3 CS* OE LB, UB Dout (Lower/Upper byte) Din (Lower/Upper byte Valid address UBW LBW t WHZ t OHZ ...

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HM6216255HI Series Write Timing Waveform (3) (CS Controlled) Address LB, UB Dout (Lower/Upper byte) Din (Lower/Upper byte Valid address UBW ...

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... Package Dimensions HM6216255HJPI Series (CP-44D) 28.90 Max 44 1 0.74 1.30 Max 0.43 0.10 0.41 0.08 Dimension including the plating thickness Base material dimension 28. 1.27 0.10 Hitachi Code JEDEC EIAJ Weight (reference value) HM6216255HI Series Unit: mm 9.40 0.25 CP-44D Conforms — 1 ...

Page 14

... HM6216255HI Series HM6216255HTTI Series (TTP-44DE) 18.41 18.81 Max 44 1 0.80 0.27 0.07 0.13 0.25 0.05 1.005 Max 0.10 Dimension including the plating thickness Base material dimension 11.76 0.20 Hitachi Code JEDEC EIAJ Weight (reference value) Unit: mm 0.80 0 – 5 0.50 0.10 TTP-44DE — ...

Page 15

... Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics ...

Page 16

HM6216255HI Series Revision Record Rev. Date Contents of Modification 1.0 Apr. 15, 1999 Initial issue 16 Drawn by Approved by ...

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