M68AW256DM70ZB6 datasheet, PDF

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M68AW256DM70ZB6: DescriptionIC,SRAM,256KX16,CMOS,BGA,48PIN,PLASTIC; Categorystorage storage; File Size284KB，20 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance

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M68AW256DM70ZB6 Overview

IC,SRAM,256KX16,CMOS,BGA,48PIN,PLASTIC

M68AW256DM70ZB6 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Objectid	1125528801
package instruction	TFBGA-48
Reach Compliance Code	compliant
ECCN code	3A991.B.2.A
Maximum access time	20 ns
I/O type	COMMON
JESD-30 code	R-PBGA-B48
JESD-609 code	e1
length	8 mm
memory density	4194304 bit
Memory IC Type	STANDARD SRAM
memory width	16
Number of functions	1
Number of terminals	48
word count	262144 words
character code	256000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
organize	256KX16
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	TFBGA
Encapsulate equivalent code	BGA48,6X8,30
Package shape	RECTANGULAR
Package form	GRID ARRAY, THIN PROFILE, FINE PITCH
Parallel/Serial	PARALLEL
power supply	3/3.3 V
Certification status	Not Qualified
Maximum seat height	1.2 mm
Minimum standby current	1 V
Maximum slew rate	0.02 mA
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN SILVER COPPER
Terminal form	BALL
Terminal pitch	0.75 mm
Terminal location	BOTTOM
width	7 mm

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M68AW256D

4 Mbit (256K x16) 3.0V Asynchronous SRAM

FEATURES SUMMARY

SUPPLY VOLTAGE: 2.7 to 3.6V

Figure 1. Packages

256K x 16 bits SRAM with OUTPUT ENABLE

EQUAL CYCLE and ACCESS TIME: 55ns

SINGLE BYTE READ/WRITE

LOW STANDBY CURRENT

LOW V

DATA RETENTION: 1.5V

TRI-STATE COMMON I/O

AUTOMATIC POWER DOWN

DUAL CHIP ENABLE for EASY DEPTH

EXPANSION

BGA

TSOP44 Type II (ND)

TFBGA48 (ZB)

7 x 8 mm

April 2003

1/20

M68AW256D

TABLE OF CONTENTS

SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 2. Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Table 1. Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Figure 3. TSOP Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 4. TFBGA Connections (Top view through package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 5. Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 2. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DC AND AC PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 3. Operating and AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 6. AC Measurement I/O Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 7. AC Measurement Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 4. Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 5. DC Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 6. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Read Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 8. Address Controlled, Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 9. Chip Enable or Output Enable Controlled, Read Mode AC Waveforms. . . . . . . . . . . . . . 10

Figure 10. Chip Enable or UB/LB Controlled, Standby Mode AC Waveforms . . . . . . . . . . . . . . . . 10

Table 7. Read and Standby Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Write Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 11. Write Enable Controlled, Write AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 12. Chip Enable Controlled, Write AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 13. UB/LB Controlled, Write AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 8. Write Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 14. E1 Controlled, Low VCC Data Retention AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . 15

Table 9. Low V

Data Retention Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

TSOP44 Type II - 44 lead Plastic Thin Small Outline Type II, Package Outline . . . . . . . . . . . . . . . 16

TSOP 44 Type II - 44 lead Plastic Thin Small Outline Type II, Package Mechanical Data . . . . . . . 16

TFBGA48 7x8mm - 6x8 ball array, 0.75 mm pitch, Bottom View Package Outline . . . . . . . . . . . . . 17

TFBGA48 7x8mm - 6x8 ball array, 0.75 mm pitch, Package Mechanical Data. . . . . . . . . . . . . . . . 17

PART NUMBERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 12. Ordering Information Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 13. Document Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2/20

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