IS61C256AL-12JLI ISSI, Integrated Silicon Solution Inc, IS61C256AL-12JLI Datasheet
IS61C256AL-12JLI
Specifications of IS61C256AL-12JLI
Available stocks
Related parts for IS61C256AL-12JLI
IS61C256AL-12JLI Summary of contents
Page 1
... Easy memory expansion is provided by using an active LOW Chip Enable (CE) input and an active LOW Output Enable (OE) input. The active LOW Write Enable (WE) controls both writing and reading of the memory. The IS61C256AL is pin compatible with other 32Kx8 SRAMs and are available in 28-pin SOJ and TSOP (Type I) packages. DECODER ...
Page 2
... IS61C256AL PIN CONFIGURATION 28-Pin SOJ A14 1 28 VDD WE A12 A13 A11 A10 I/O7 I/ I/O6 I/ I/O5 I/ I/O4 GND 14 15 I/O3 PIN DESCRIPTIONS A0-A14 Address Inputs CE Chip Enable Input OE Output Enable Input WE Write Enable Input I/O0-I/O7 Bidirectional Ports V Power DD GND Ground ABSOLUTE MAXIMUM RATINGS ...
Page 3
... IS61C256AL OPERATING RANGE Range Ambient Temperature Commercial 0°C to +70°C Commercial 0°C to +70°C Industrial –40°C to +85°C DC ELECTRICAL CHARACTERISTICS Symbol Parameter V Output HIGH Voltage OH V Output LOW Voltage OL V Input HIGH Voltage IH V Input LOW Voltage ( Input Leakage LI I Output Leakage LO Note: 1 ...
Page 4
... IS61C256AL READ CYCLE SWITCHING CHARACTERISTICS Symbol Parameter t Read Cycle Time RC t Address Access Time AA t Output Hold Time OHA CE Access Time t ACS OE Access Time t DOE OE to Low-Z Output t (2) LZOE OE to High-Z Output t (2) HZOE CE to Low-Z Output t (2) LZCS CE to High-Z Output ...
Page 5
... IS61C256AL AC WAVEFORMS READ CYCLE NO. 1 (1,2) ADDRESS D OUT PREVIOUS DATA VALID READ CYCLE NO. 2 (1,3) ADDRESS LZCS HIGH-Z D OUT Notes HIGH for a Read Cycle. 2. The device is continuously selected. OE Address is valid prior to or coincident with CE LOW transitions. Integrated Silicon Solution, Inc. — www.issi.com — ...
Page 6
... IS61C256AL WRITE CYCLE SWITCHING CHARACTERISTICS Symbol Parameter t Write Cycle Time Write End t SCS t Address Setup Time AW to Write End t Address Hold HA from Write End t Address Setup Time SA WE Pulse Width (OE LOW PWE WE Pulse Width (OE HIGH PWE t Data Setup to Write End SD t Data Hold from Write End ...
Page 7
... IS61C256AL WRITE CYCLE NO. 2 (OE is HIGH During Write Cycle) ADDRESS OE CE LOW DATA UNDEFINED OUT D IN WRITE CYCLE NO. 3 (OE is LOW During Write Cycle) ADDRESS OE LOW CE LOW DATA UNDEFINED OUT D IN Notes: 1. The internal write time is defined by the overlap of CE LOW and WE LOW. All signals must be in valid states to initiate a Write, but any one can go inactive to terminate the Write ...
Page 8
... IS61C256AL DATA RETENTION SWITCHING CHARACTERISTICS Symbol Parameter V V for Data Retention Data Retention Current DR t Data Retention Setup Time SDR t Recovery Time RDR Note: 1. Typical Values are measured 5V DATA RETENTION WAVEFORM (CE VDD 4.5V 2. GND 8 Test Condition See Data Retention Waveform = 2.0V, CE ≥ – ...
Page 9
... IS61C256AL-10TL 12 IS61C256AL-12J IS61C256AL-12JL IS61C256AL-12T IS61C256AL-12TL Industrial Range: –40°C to +85°C Speed (ns) Order Part Number 12 IS61C256AL-12JI IS61C256AL-12JLI IS61C256AL-12TI IS61C256AL-12TLI Integrated Silicon Solution, Inc. — www.issi.com — Rev. B 10/23/06 Package 300-mil Plastic SOJ 300-mil Plastic SOJ, Lead-free TSOP (Type 1) TSOP (Type 1), Lead-free ...
Page 10
PACKAGING INFORMATION 300-mil Plastic SOJ Package Code MILLIMETERS Sym. Min. Typ. Max. N0. Leads 24/26 A — — 3.56 A1 0.64 — — A2 2.41 — 2.67 b 0.41 — 0.51 B 0.66 — 0.81 ...
Page 11
PACKAGING INFORMATION 300-mil Plastic SOJ Package Code: J MILLIMETERS Sym. Min. Typ. Max. Min. Typ. Max. N0. Leads 28 A — — 3.56 — A1 0.64 — — 0.025 A2 2.41 — 2.67 0.095 b 0.41 — 0.51 0.016 B ...
Page 12
PACKAGING INFORMATION Plastic TSOP - 28-pins Package Code: T (Type Plastic TSOP (T—Type I) Millimeters Symbol Min Max Ref. Std. No. Leads A 1.00 1.20 A1 0.05 0.20 B 0.16 0.27 C 0.10 0.20 ...