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IS61LV3216
32K x 16 LOW VOLTAGE CMOS STATIC RAM
FEATURES
* High-speed access time: 10, 12, 15, and 20 ns * CMOS low power operation -- 150 mW (typical) operating -- 150 W (typical) standby * TTL compatible interface levels * Single 3.3V 10% power supply * Fully static operation: no clock or refresh required * Three state outputs * Industrial temperature available * Available in 44-pin 400-mil SOJ package and 44-pin TSOP (Type 2)
ISSI
(R)
NOVEMBER 1997
DESCRIPTION The ISSI IS61LV3216 is a high-speed, 512K static RAM
organized as 32,768 words by 16 bits. It is fabricated using ISSI's high-performance CMOS technology. This highly reliable process coupled with innovative circuit design techniques, yields fast access times with low power consumption. When CE is HIGH (deselected), the device assumes a standby mode at which the power dissipation can be reduced down with CMOS input levels. Easy memory expansion is provided by using Chip Enable and Output Enable inputs, CE and OE. The active LOW Write Enable (WE) controls both writing and reading of the memory.A data byte allows Upper Byte (UB) and Lower Byte (LB) access. The IS61LV3216 is packaged in the JEDEC standard 44-pin 400-mil SOJ and 44-pin TSOP (Type 2).
FUNCTIONAL BLOCK DIAGRAM
A0-A14
DECODER
32K x 16 MEMORY ARRAY
VCC GND I/O0-I/O7 Lower Byte I/O8-I/O15 Upper Byte I/O DATA CIRCUIT
COLUMN I/O
CE OE WE UB LB CONTROL CIRCUIT
ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. (c) Copyright 2001, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01
1
IS61LV3216
PIN CONFIGURATIONS
44-Pin SOJ
NC A14 A13 A12 A11 CE I/O0 I/O1 I/O2 I/O3 Vcc GND I/O4 I/O5 I/O6 I/O7 WE A10 A9 A8 A7 NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A0 A1 A2 OE UB LB I/O15 I/O14 I/O13 I/O12 GND Vcc I/O11 I/O10 I/O9 I/O8 NC A3 A4 A5 A6 NC
ISSI
44-Pin TSOP
NC A14 A13 A12 A11 CE I/O0 I/O1 I/O2 I/O3 Vcc GND I/O4 I/O5 I/O6 I/O7 WE A10 A9 A8 A7 NC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 A0 A1 A2 OE UB LB I/O15 I/O14 I/O13 I/O12 GND Vcc I/O11 I/O10 I/O9 I/O8 NC A3 A4 A5 A6 NC
(R)
PIN DESCRIPTIONS
A0-A14 I/O0-I/O15 CE OE WE Address Inputs Data Inputs/Outputs Chip Enable Input Output Enable Input Write Enable Input LB UB NC Vcc GND Lower-byte Control (I/O0-I/O7) Upper-byte Control (I/O8-I/O15) No Connection Power Ground
TRUTH TABLE
Mode Not Selected Output Disabled Read WE X H X H H H L L L CE H L L L L L L L L OE X H X L L L X X X LB X X H L H L L H L UB X X H H L L H L L I/O PIN I/O0-I/O7 I/O8-I/O15 High-Z High-Z High-Z DOUT High-Z DOUT DIN High-Z DIN High-Z High-Z High-Z High-Z DOUT DOUT High-Z DIN DIN Vcc Current ISB1, ISB2 ICC ICC
Write
ICC
2
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01
IS61LV3216
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VCC VTERM TSTG PT IOUT Parameter Supply Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature Power Dissipation DC Output Current (LOW) Value -0.5 to +4.6 -0.5 to Vcc + 0.5 -65 to +150 1.0 20 Unit V V C W mA
ISSI
(R)
Note: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
1 2 3 4
OPERATING RANGE
Range Commercial Ambient Temperature 0C to +70C VCC 3.3V 10%
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Symbol VOH VOL VIH VIL ILI ILO Parameter Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage(1) GND - VIN - VCC GND - VOUT - VCC, Outputs Disabled Input Leakage Output Leakage Test Conditions VCC = Min., IOH = -4.0 mA VCC = Min., IOL = 8.0 mA Min. 2.4 -- 2.2 -0.3 -2 -2 Max. -- 0.4 VCC + 0.3 0.8 2 2 Unit V V V V A A
5 6 7 8
Notes: 1. VIL (min.) = -3.0V for pulse width less than 10 ns.
POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
Symbol Parameter ICC ISB1 Vcc Dynamic Operating Supply Current TTL Standby Current (TTL Inputs) CMOS Standby Current (CMOS Inputs) Test Conditions VCC = Max., IOUT = 0 mA, f = fMAX VCC = Max., VIN = VIH or VIL CE * VIH , f = 0 VCC = Max., CE * VCC - 0.2V, VIN * VCC - 0.2V, or VIN - 0.2V, f = 0 Com. Ind. Com. Ind. Com. Ind. -10 ns Min. Max. -- -- -- -- -- -- 220 -- 10 -- 5 -- -12 ns Min. Max. -- -- -- -- -- -- 200 230 10 20 5 10 -15 ns Min. Max. -- -- -- -- -- -- 180 200 10 20 5 10 -20 ns Min. Max. -- -- -- -- -- -- 160 180 10 20 5 10
9
Unit mA mA
10 11 12
ISB2
mA
Note: 1. At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01
3
IS61LV3216
CAPACITANCE(1)
Symbol CIN COUT Parameter Input Capacitance Input/Output Capacitance Conditions VIN = 0V VOUT = 0V Max. 6 8 Unit pF pF
ISSI
(R)
Note: 1. Tested initially and after any design or process changes that may affect these parameters.
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
Symbol Parameter Read Cycle Time Address Access Time Output Hold Time CE Access Time OE Access Time
(2) (2
-10 Min. Max. 10 -- 3 -- -- 0 0 0 4 -- 0 5 -- 10 -- 10 5 5 -- 5 -- 5 5 --
-12 Min. Max. 12 -- 3 -- -- 0 0 0 4 -- 0 5 -- 12 -- 12 6 6 -- 6 -- 6 6 --
-15 Min. Max. 15 -- 3 -- -- 0 0 0 4 -- 0 5 -- 15 -- 15 7 7 -- 7 -- 7 7 --
-20 Min. Max. 20 -- 3 -- -- 0 0 0 4 -- 0 5 -- 20 -- 20 8 8 -- 8 -- 8 8 --
Unit ns ns ns ns ns ns ns ns ns ns ns ns
tRC tAA tOHA tACE tDOE tLZOE
tHZOE(2) OE to High-Z Output
OE to Low-Z Output CE to High-Z Output LB, UB Access Time LB, UB to High-Z Output LB, UB to Low-Z Output
tHZCE tBA tHZB tLZB
tLZCE(2) CE to Low-Z Output
Notes: 1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and output loading specified in Figure 1a. 2. Tested with the load in Figure 1b. Transition is measured 500 mV from steady-state voltage. Not 100% tested. 3. Not 100% tested.
AC TEST CONDITIONS
Parameter Input Pulse Level Input Rise and Fall Times Input and Output Timing and Reference Level Output Load Unit 0V to 3.0V 3 ns 1.5V See Figures 1a and 1b
319 3.3V
3.3V 319
AC TEST LOADS
OUTPUT 30 pF Including jig and scope
OUTPUT
353
5 pF Including jig and scope
353
Figure 1a. 4
Figure 1b.
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01
IS61LV3216
AC WAVEFORMS READ CYCLE NO. 1(1,2) (Address Controlled) (CE = OE = VIL, UB or LB = VIL)
tRC
ISSI
(R)
1 2
ADDRESS
tAA tOHA tOHA
DATA VALID
DOUT
PREVIOUS DATA VALID
3 4
READ CYCLE NO. 2(1,3)
tRC
5
tOHA
ADDRESS
tAA
OE
tDOE tHZOE
6 7
CE
tLZCE
tLZOE tACE tHZCE
LB, UB
tBA tHZB
DATA VALID
8
HIGH-Z
tLZB
DOUT
9 10 11 12
Notes: 1. WE is HIGH for a Read Cycle. 2. The device is continuously selected. OE, CE, UB, or LB = VIL. 3. Address is valid prior to or coincident with CE LOW transition.
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01
5
IS61LV3216
WRITE CYCLE SWITCHING CHARACTERISTICS(1,3) (Over Operating Range)
Symbol Parameter Write Cycle Time CE to Write End Address Setup Time to Write End Address Hold from Write End Address Setup Time LB, UB Valid to End of Write WE Pulse Width Data Setup to Write End Data Hold from Write End
(2)
ISSI
-10 Min. Max. 10 9 9 0 0 9 7 5 0 -- 1 -- -- -- -- -- -- -- -- -- 5 -- -12 Min. Max. 12 10 10 0 0 10 8 6 0 -- 1 -- -- -- -- -- -- -- -- -- 6 -- -15 Min. Max. 15 11 11 0 0 11 10 7 0 -- 1 -- -- -- -- -- -- -- -- -- 7 -- -20 Min. Max. 20 12 12 0 0 12 11 -- 0 -- 1 -- -- -- -- -- -- -- 8 -- 8 -- Unit ns ns ns ns ns ns ns ns ns ns ns
(R)
tWC tSCE tAW tHA tSA tPWB tPWE tSD tHD tHZWE
WE LOW to High-Z Output
tLZWE(2) WE HIGH to Low-Z Output
Notes: 1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and output loading specified in Figure 1a. 2. Tested with the load in Figure 1b. Transition is measured 500 mV from steady-state voltage. Not 100% tested. 3. The internal write time is defined by the overlap of CE LOW and UB or LB, and WE LOW. All signals must be in valid states to initiate a Write, but any one can go inactive to terminate the Write. The Data Input Setup and Hold timing are referenced to the rising or falling edge of the signal that terminates the write.
6
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01
IS61LV3216
AC WAVEFORMS WRITE CYCLE NO. 1 (WE Controlled)(1,2)
ISSI
tWC
(R)
1
ADDRESS
tSCE tHA
2 3
tPWB
CE
LB, UB
tAW tPWE
4 5 6
tSD tHD tSA
WE
WRITE(1)
DIN
tHZWE tLZWE
UNDEFINED HIGH-Z UNDEFINED HIGH-Z
7 8 9 10 11 12
DOUT
Notes: 1. WRITE is an internally generated signal asserted during an overlap of the LOW states on the CE and WE inputs and at least one of the LB and UB inputs being in the LOW state. 2. WRITE = (CE) [ (LB) = (UB) ] (WE).
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01
7
IS61LV3216
ISSI
ORDERING INFORMATION Industrial Range: -40C to +85C
Speed (ns) Order Part No. 12 12 15 15 20 20 IS61LV3216-12TI IS61LV3216-12KI IS61LV3216-15TI IS61LV3216-15KI IS61LV3216-20TI IS61LV3216-20KI Package Package Plastic TSOP (Type 2) 400-mil Plastic SOJ Plastic TSOP (Type 2) 400-mil Plastic SOJ Plastic TSOP (Type 2) 400-mil Plastic SOJ Plastic TSOP (Type 2) 400-mil Plastic SOJ
(R)
ORDERING INFORMATION Commercial Range: 0C to +70C
Speed (ns) Order Part No. 10 10 12 12 15 15 20 20 IS61LV3216-10T IS61LV3216-10K IS61LV3216-12T IS61LV3216-12K IS61LV3216-15T IS61LV3216-15K IS61LV3216-20T IS61LV3216-20K
Plastic TSOP (Type 2) 400-mil Plastic SOJ Plastic TSOP (Type 2) 400-mil Plastic SOJ Plastic TSOP (Type 2) 400-mil Plastic SOJ
NOTICE Integrated Silicon Solution, Inc., reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability. Integrated Silicon Solution, Inc. assumes no responsibility for the use of any circuits described herein, conveys no license under any patent or other right, and makes no representation that the circuits are free of patent infringement. Charts and schedules contained herein reflect representative operating parameters, and may vary depending upon a user's specific application. While the information in this publication has been carefully checked, Integrated Silicon Solution, Inc. shall not be liable for any damages arising as a result of any error or omission. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurances, to its satisfaction, that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; and (c) potential liability of Integrated Silicon Solution, Inc. is adequately protected under the circumstances. Copyright 1997 Integrated Silicon Solution, Inc. Reproduction in whole or in part, without the prior written consent of Integrated Silicon Solution, Inc., is prohibited.
ISSI
(R)
Integrated Silicon Solution, Inc.
2231 Lawson Lane Santa Clara, CA 95054 Tel: 1-800-379-4774 Fax: (408) 588-0806 E-mail: sales@issi.com www.issi.com
8
Integrated Silicon Solution, Inc. -- 1-800-379-4774
Rev. A 04/17/01

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