M68AF127BM70MC1T datasheet, PDF

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M68AF127BM70MC1T: Description1Mbit 128K x8, 5V Asynchronous SRAM; Categorystorage storage; File Size142KB，23 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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M68AF127BM70MC1T Overview

1Mbit 128K x8, 5V Asynchronous SRAM

M68AF127BM70MC1T Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	STMicroelectronics
Parts packaging code	SOIC
package instruction	PLASTIC, SOP-32
Contacts	32
Reach Compliance Code	_compli
ECCN code	EAR99
Maximum access time	70 ns
I/O type	COMMON
JESD-30 code	R-PDSO-G32
JESD-609 code	e0
length	20.445 mm
memory density	1048576 bi
Memory IC Type	STANDARD SRAM
memory width	8
Number of functions	1
Number of terminals	32
word count	131072 words
character code	128000
Operating mode	ASYNCHRONOUS
Maximum operating temperature	70 °C
Minimum operating temperature
organize	128KX8
Output characteristics	3-STATE
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOP32,.56
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Parallel/Serial	PARALLEL
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Certification status	Not Qualified
Maximum seat height	3 mm
Maximum standby current	0.0000045 A
Minimum standby current	2 V
Maximum slew rate	0.015 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	4.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	1.27 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	11.305 mm

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M68AF127B

1Mbit (128K x8), 5V Asynchronous SRAM

FEATURES SUMMARY

■

SUPPLY VOLTAGE: 4.5 to 5.5V

128K x 8 bits SRAM with OUTPUT ENABLE

EQUAL CYCLE and ACCESS TIMES: 55ns

LOW STANDBY CURRENT

LOW V

DATA RETENTION: 2V

TRI-STATE COMMON I/O

LOW ACTIVE and STANDBY POWER

Figure 1. Packages

SO32 (MC)

PDIP32 (B)

TSOP32 (NK)

8 x 13.4mm

TSOP32 (N)

8 x 20mm

September 2004

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M68AF127B

TABLE OF CONTENTS

FEATURES SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 1. Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SUMMARY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Figure 2.

Table 1.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Logic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Signal Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

SO Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

DIP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

TSOP Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Read Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Write Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 2. Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

MAXIMUM RATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 3. Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

DC AND AC PARAMETERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 4. Operating and AC Measurement Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 7. AC Measurement I/O Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 8. AC Measurement Load Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 5. Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Table 6. DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 9. Address Controlled, Read Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 10.Chip Enable or Output Enable Controlled, Read Mode AC Waveforms . . . . . . . . . . . . . 11

Figure 11.Chip Enable Controlled, Standby Mode AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 7. Read and Standby Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 12.Write Enable Controlled, Write AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 13.Chip Enable Controlled, Write AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 8. Write Mode AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 14.E1 Controlled, Low V

Data Retention AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 15.E2 Controlled, Low V

Data Retention AC Waveforms . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 9. Low V

Data Retention Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

PACKAGE MECHANICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 16.SO32 - 32 lead Plastic Small Outline, Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 10. SO32 - 32 lead Plastic Small Outline, Package Mechanical Data. . . . . . . . . . . . . . . . . . 17

Figure 17.PDIP32 - 32 pin Plastic DIP, 600 mils width, Package Outline . . . . . . . . . . . . . . . . . . . . 18

Table 11. PDIP32 - 32 pin Plastic DIP, 600 mils width, Package Mechanical Data . . . . . . . . . . . . 18

Figure 18.TSOP32 - 32-lead Thin Small Outline Package, 8x13.4mm, Package Outline . . . . . . . . 19

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