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KM681000E Family
Document Title
128Kx8 bit Low Power CMOS Static RAM
CMOS SRAM
Revision History
Revision No.
0.0 1.0
History
Design target Finalize - Improve tWP form 55ns to 50ns for 70ns product. - Remove 55ns speed bin for industrial product. Errata correction
Draft Data
October 12, 1998 August 30, 1999
Remark
Preliminary Final
1.01
December 1, 1999
The attached datasheets are provided by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserves the right to change the specifications and products. SAMSUNG Electronics will answer to your questions. If you have any questions, please contact the SAMSUNG branch offices.
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Revision 1.01 December 1999
KM681000E Family
128Kx8 bit Low Power CMOS Static RAM
FEATURES
* Process Technology: TFT * Organization: 128Kx8 * Power Supply Voltage: 4.5~5.5V * Low Data Retention Voltage: 2V(Min) * Three state output and TTL Compatible * Package Type: 32-DIP-600, 32-SOP-525, 32-TSOP1-0820F
CMOS SRAM
GENERAL DESCRIPTION
The KM681000E families are fabricated by SAMSUNGs advanced CMOS process technology. The families support various operating temperature ranges and have various package types for user flexibility of system design. The families also support low data retention voltage for battery back-up operation with low data retention current.
PRODUCT FAMILY
Power Dissipation Product Family KM681000EL KM681000EL-L KM681000ELI KM681000ELI-L
1. The parameters are tested with 50pF test load
Operating Temperature
Vcc Range
Speed
Standby (ISB1, Max) 50A 10A
Operating (ICC2, Max)
PKG Type
Commercial(0~70C) 4.5~5.5V Industrial(-40~85C)
55 1)/70ns
32-DIP, 32-SOP 32-TSOP1-0820F 50mA 32-SOP -525 32-TSOP1-0820F
70ns
50A 15A
PIN DESCRIPTION
N.C A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O1 I/O2 I/O3 VSS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 VCC A15 CS2 A11 A9 A8 A13 A8 WE A9 CS2 A15 A11 VCC OE NC A16 A10 A14 A12 CS1 A7 I/O8 A6 A5 I/O7 A4 WE A13 I/O6 I/O5 I/O4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CS1 I/O8 I/O7 I/O6 I/O5 I/O4 VSS I/O3 I/O2 I/O1 A0 A1 A2 A3
FUNCTIONAL BLOCK DIAGRAM
Clk gen. Precharge circuit.
32-DIP 32-SOP
25 24 23 22 21 20 19 18 17
32-TSOP Type1-Forward
Raw Address
Row select
Memory array 1024 rows 128x8 columns
I/O1 I/O8
Data cont
I/O Circuit Column select
Name CS1, CS2 OE WE I/O1~I/O8 A0~A16 Vcc Vss N.C.
Function Chip Select Input Output Enable Input Write Enable Input Data Inputs/Outputs Address Inputs Power Ground No Connection
CS1 CS2 WE OE Column Address
Data cont
Control logic
SAMSUNG ELECTRONICS CO., LTD. reserves the right to change products and specifications without notice. 2
Revision 1.01 December 1999
KM681000E Family
PRODUCT LIST
Commercial Temperature Products(0~70C) Part Name KM681000ELP-5 KM681000ELP-7 KM681000ELP-5L KM681000ELP-7L KM681000ELG-5 KM681000ELG-7 KM681000ELG-5L KM681000ELG-7L KM681000ELT-5L KM681000ELT-7L Function 32-DIP, 55ns, Low Power 32-DIP, 70ns, Low Power 32-DIP, 55ns, Low Low Power 32-DIP, 70ns, Low Low Power 32-SOP, 55ns, Low Power 32-SOP, 70ns, Low Power 32-SOP, 55ns, Low Low Power 32-SOP, 70ns, Low Low Power 32-TSOP F, 55ns, Low Low Power 32-TSOP F, 70ns, Low Low Power
CMOS SRAM
Industrial Temperature Products(-40~85C) Part Name KM681000ELGI-7 KM681000ELGI-7L KM681000ELTI-7L Function 32-SOP, 70ns, Low Power 32-SOP, 70ns, Low Low Power 32-TSOP F, 70ns, Low Low Power
FUNCTIONAL DESCRIPTION
CS1 H X1) L L L CS2 X
1)
OE X
1)
WE X
1)
I/O High-Z High-Z High-Z Dout Din
Mode Deselected Deselected Output Disabled Read Write
Power Standby Standby Active Active Active
L H H H
X1) H L X
1)
X1) H H L
1. X means dont care (Must be in high or low states)
ABSOLUTE MAXIMUM RATINGS1)
Item Voltage on any pin relative to Vss Voltage on Vcc supply relative to Vss Power Dissipation Storage temperature Operating Temperature Symbol VIN,VOUT VCC PD TSTG TA Ratings -0.5 to 7.0 -0.5 to 7.0 1.0 -65 to 150 0 to 70 -40 to 85 Unit V V W C C C Remark KM681000EL KM681000ELI
1. Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. Functional operation should be restricted to recommended operating condition. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
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Revision 1.01 December 1999
KM681000E Family
RECOMMENDED DC OPERATING CONDITIONS1)
Item Supply voltage Ground Input high voltage Input low voltage Symbol Vcc Vss VIH VIL Product KM681000E Family All Family KM681000E Family KM681000E Family Min 4.5 0 2.2 -0.5
3)
CMOS SRAM
Typ 5.0 0 Max 5.5 0 Vcc+0.5 0.8
2)
Unit V V V V
Note: 1. Commercial Product: TA=0 to 70C, and Industrial Product: TA=-40 to 85C, otherwise specified 2. Overshoot : Vcc+3.0V in case of pulse width30ns 3. Undershoot : -3.0V in case of pulse width30ns 4. Overshoot and undershoot are sampled, not 100% tested.
CAPACITANCE1) (f=1MHz, TA=25C)
Item Input capacitance Input/Output capacitance
1. Capacitance is sampled, not 100% tested
Symbol CIN CIO
Test Condition VIN=0V VIO=0V
Min -
Max 6 8
Unit pF pF
DC AND OPERATING CHARACTERISTICS
Item Input leakage current Output leakage current Operating power supply current Average operating current Output low voltage Output high voltage Standby Current(TTL) Standby Current(CMOS) Symbol ILI ILO ICC ICC1 ICC2 VOL VOH ISB ISB1 VIN=Vss to Vcc CS1=VIH or CS2=VIL or OE=VIH or WE=VIL, VIO=Vss to Vcc IIO=0mA, CS1=VIL, CS2=VIH, VIN=VIH or VIL, Read
Cycle time=1s, 100%duty, IIO=0mA, CS10.2V, CS2Vcc-0.2V, VIN0.2V Cycle time=Min, 100% duty, IIO=0mA, CS1=VIL, CS2=VIH, VIN=VIH or VIL
Test Conditions
Min Typ Max Unit -1 -1 2.4 1 1 10 7 50 0.4 3 501) A A mA mA mA V V mA A
IOL=2.1mA IOH=-1.0mA CS1=VIH, CS2=VIL, Other inputs=VIH or VIL CS1Vcc-0.2V, CS2Vcc-0.2V or CS20.2V, Other inputs=0~Vcc
1. 50A for Low power product, in case of Low Low power products are comercial=10A, industrial=15A.
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Revision 1.01 December 1999
KM681000E Family
AC OPERATING CONDITIONS
TEST CONDITIONS( Test Load and Input/Output Reference)
Input pulse level : 0.8 to 2.4V Input rising and falling time : 5ns Input and output reference voltage :1.5V Output load(see right) : CL=100pF+1TTL CL=50pF+1TTL CL1)
CMOS SRAM
1. Including scope and jig capacitance
AC CHARACTERISTICS (VCC=4.5~5.5V, Commercial Product : TA=0 to 70C, Industrial Product : TA=-40 to 85C)
Speed Bins Parameter List Symbol Min Read cycle time Address access time Chip select to output Output enable to valid output Read Chip select to low-Z output Output enable to low-Z output Chip disable to high-Z output Output disable to high-Z output Output hold from address change Write cycle time Chip select to end of write Address set-up time Address valid to end of write Write Write pulse width Write recovery time Write to output high-Z Data to write time overlap Data hold from write time End write to output low-Z tRC tAA tCO1, tCO2 tOE tLZ tOLZ tHZ tOHZ tOH tWC tCW tAS tAW tWP tWR tWHZ tDW tDH tOW 55 10 5 0 0 10 55 45 0 45 40 0 0 20 0 5 55ns Max 55 55 25 20 20 20 Min 70 10 5 0 0 10 70 60 0 60 50 0 0 25 0 5 70ns Max 70 70 35 25 25 25 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Units
DATA RETENTION CHARACTERISTICS
Item Vcc for data retention Symbol VDR CS1Vcc-0.2V1) KM681000EL Data retention current IDR Vcc=3.0V, CS1Vcc-0.2V1) KM681000EL-L KM681000ELI KM681000ELI-L Data retention set-up time Recovery time tSDR tRDR See data retention waveform Test Condition Min 2.0 0 5 Typ Max 5.5 20 10 25 10 ms A Unit V
1. CS1Vcc-0.2V, CS2Vcc-0.2V(CS1 controlled) or CS20.2V(CS2 controlled)
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Revision 1.01 December 1999
KM681000E Family
TIMMING DIAGRAMS
TIMING WAVEFORM OF READ CYCLE(1) (Address Controlled, CS1=OE=VIL, CS2=WE=VIH)
tRC Address tOH Data Out Previous Data Valid tAA
CMOS SRAM
Data Valid
TIMING WAVEFORM OF READ CYCLE(2) (WE=VIH)
tRC Address tAA tCO1 CS1 tHZ(1,2) CS2 tCO2 tOE tOH
OE tOLZ tLZ Data Valid tOHZ
Data out
NOTES (READ CYCLE)
High-Z
1. tHZ and tOHZ are defined as the time at which the outputs achieve the open circuit conditions and are not referenced to output voltage levels. 2. At any given temperature and voltage condition, tHZ(Max.) is less than tLZ(Min.) both for a given device and from device to device interconnection.
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Revision 1.01 December 1999
KM681000E Family
TIMING WAVEFORM OF WRITE CYCLE(1) (WE Controlled)
tWC Address tCW(2) CS1 tAW CS2 tCW(2) tWP(1) WE tAS(3) Data in tWHZ Data out Data Undefined tDW Data Valid tOW tDH tWR(4)
CMOS SRAM
TIMING WAVEFORM OF WRITE CYCLE(2) (CS1
Controlled)
tWC Address tAS(3) CS1 tAW CS2 tWP(1) WE tDW Data in Data Valid tDH tCW(2) tWR(4)
Data out
High-Z
High-Z
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Revision 1.01 December 1999
KM681000E Family
TIMING WAVEFORM OF WRITE CYCLE(3) (CS2 Controlled)
tWC Address tAS(3) CS1 tAW CS2 tCW(2) tWP(1) tDW Data in Data Valid tDH tCW(2) tWR(4)
CMOS SRAM
WE
Data out
NOTES (WRITE CYCLE)
High-Z
High-Z
1. A write occurs during the overlap of a low CS1, a high CS2 and a low WE. A write begins at the latest transition among CS1 goes low, CS2 going high and WE going low : A write end at the earliest transition among CS1 going high, CS2 going low and WE going high, tWP is measured from the begining of write to the end of write. 2. tCW is measured from the CS1 going low or CS2 going high to the end of write. 3. tAS is measured from the address valid to the beginning of write. 4. tWR is measured from the end of write to the address change. tWR1 applied in case a write ends as CS1 or WE going high tWR2 applied in case a write ends as CS2 going to low.
DATA RETENTION WAVE FORM
CS1 controlled
VCC 4.5V tSDR Data Retention Mode tRDR
2.2V VDR CSVCC - 0.2V
CS1 GND
CS2 controlled
VCC 4.5V CS2 tSDR
Data Retention Mode
tRDR
VDR 0.4V GND CS20.2V
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Revision 1.01 December 1999
KM681000E Family
PACKAGE DIMENSIONS
32 DUAL INLINE PACKAGE (600mil)
CMOS SRAM
Units: millimeters(inches)
0.25
+0.10 -0.05
+0.004 0.010-0.002
#32
#17
13.600.20 0.5350.008
#1 42.31 1.666 MAX 41.910.20 1.6500.008
#16 3.810.20 0.1500.008 5.08 0.200 MAX
15.24 0.600
0~15
( 1.91 ) 0.075
0.460.10 0.0180.004 1.520.10 0.0600.004
3.300.30 0.1300.012 2.54 0.100 0.38 MIN 0.015
32 PLASTIC SMALL OUTLINE PACKAGE (525mil)
0~8 #32 #17
14.120.30 0.5560.012
11.430.20 0.4500.008
#1 20.87 MAX 0.822 20.470.20 0.8060.008
#16 2.740.20 0.1080.008 3.00 0.118 MAX
13.34 0.525
0.20 +0.10 -0.05 0.008+0.004 -0.002
0.800.20 0.0310.008
0.10 MAX 0.004 MAX
+0.100 -0.050 +0.004 0.016 -0.002
( 0.71 ) 0.028
0.41
1.27 0.050
0.05 MIN 0.002
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Revision 1.01 December 1999
KM681000E Family
PACKAGE DIMENSIONS
32 PIN THIN SMALL OUTLINE PACKAGE TYPE I (0820F)
CMOS SRAM
Units: millimeters(inches)
0.20
+0.10 -0.05 0.008+0.004 -0.002
20.000.20 0.7870.008 #32 ( 8.40 0.331 MAX 8.00 0.315 0.25 ) 0.010
#1
0.50 0.0197
#16
#17 1.000.10 0.0390.004 1.20 0.047 MAX
+0.10 -0.05 0.006+0.004 -0.002
0.05 0.002 MIN
0.25 0.010 TYP
18.400.10 0.7240.004
0.15
0~8
0.45 ~0.75 0.018 ~0.030
(
0.50 ) 0.020
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Revision 1.01 December 1999
0.10 MAX 0.004 MAX

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