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Part Number: GS881Z18B
Description: The GS881Z18/32/36B(T/D)-xxxV is a 9Mbit Synchronous Static SRAM. GSI's NBT SRAMs, like ZBT, NtRAM, NoBL or other pipel...
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GS881Z18B
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General Description
GS881Z18B General Description
The GS881Z18/32/36B(T/D)-xxxV is a 9Mbit Synchronous Static SRAM. GSI's NBT SRAMs, like ZBT, NtRAM, NoBL or other pipelined read/double late write or flow through read/single late write SRAMs, allow utilization of all available bus bandwidth by eliminating the need to insert deselect cycles when the device is switched from read to write cycles.
Because it is a synchronous device, address, data inputs, and read/ write control inputs are captured on the rising edge of the input clock. Burst order control (LBO) must be tied to a power rail for proper operation. Asynchronous inputs include the Sleep mode enable, ZZ and Output Enable. Output Enable can be used to override the synchronous control of the output drivers and turn the RAM's output drivers off at any time. Write cycles are internally self-timed and initiated by the rising edge of the clock input. This feature eliminates complex off-chip write pulse generation required by asynchronous SRAMs and simplifies input signal timing.
The GS881Z18/32/36B(T/D)-xxxV may be configured by the user to operate in Pipeline or Flow Through mode. Operating as a pipelined synchronous device, in addition to the rising-edge-triggered registers that capture input signals, the device incorporates a rising-edge-triggered output register. For read cycles, pipelined SRAM output data is temporarily stored by the edge triggered output register during the access cycle and then released to the output drivers at the next rising edge of clock.
The GS881Z18/32/36B(T/D)-xxxV is implemented with GSI's high performance CMOS technology and is available in JEDEC-standard 100-pin TQFP and 165-bump BGA packages.
GS881Z18B Maximum Ratings
| Symbol | Description | Value | Unit |
| VDD | Voltage on VDD Pins | 0.5 to 4.6 | V |
| VDDQ | Voltage in VDDQPins | 0.5 to 4.6 | V |
| VI/O | Voltage on I/O Pins | 0.5 to VDDQ+0.5 ( 4.6 V max.) | V |
| VIN | Voltage on Other Input Pins | 0.5 to VDD +0.5 ( 4.6 V max.) | V |
| IIN | Input Current on Any Pin | +/20 | mA |
| IOUT | Output Current on Any I/O Pin | +/20 | mA |
| PD | Package Power Dissipation | 1.5 | W |
| TSTG | Storage Temperature | 55 to 125 | |
| TBIAS | Temperature Under Bias | 55 to 125 |
Permanent damage to the device may occur if the Absolute Maximum Ratings are exceeded. Operation should be restricted to Recommended Operating Conditions. Exposure to conditions exceeding the Absolute Maximum Ratings, for an extended period of time, may affect reliability of this component.
GS881Z18B Features
• User-configurable Pipeline and Flow Through mode
• NBT (No Bus Turn Around) functionality allows zero wait read-write-read bus utilization
• Fully pin-compatible with both pipelined and flow through NtRAM™, NoBL™ and ZBT™ SRAMs
• IEEE 1149.1 JTAG-compatible Boundary Scan
• On-chip write parity checking; even or odd selectable
• 1.8 V or 2.5 V core power supply
• 1.8 V or 2.5 V I/O supply
• LBO pin for Linear or Interleave Burst mode
• Pin-compatible with 2M, 4M, and 18M devices
• Byte write operation (9-bit Bytes)
• 3 chip enable signals for easy depth expansion
• ZZ pin for automatic power-down
• JEDEC-standard packages
• RoHS-compliant 100-lead TQFP and 165-bump BGA packages available
• NBT (No Bus Turn Around) functionality allows zero wait read-write-read bus utilization
• Fully pin-compatible with both pipelined and flow through NtRAM™, NoBL™ and ZBT™ SRAMs
• IEEE 1149.1 JTAG-compatible Boundary Scan
• On-chip write parity checking; even or odd selectable
• 1.8 V or 2.5 V core power supply
• 1.8 V or 2.5 V I/O supply
• LBO pin for Linear or Interleave Burst mode
• Pin-compatible with 2M, 4M, and 18M devices
• Byte write operation (9-bit Bytes)
• 3 chip enable signals for easy depth expansion
• ZZ pin for automatic power-down
• JEDEC-standard packages
• RoHS-compliant 100-lead TQFP and 165-bump BGA packages available
GS881Z18B Connection Diagram
GS881Z18B
PDF/DataSheet Download
- Datasheet: GS881Z18B
- File Size: 629488 KB
- Manufacturer: ETC [ETC]
- Click here to Download
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