40889

Features: M/S = VIH for BUSY output flag on Master, M/S = VIL for BUSY input on Slave Busy and Interrupt Flags On-chip port arbitration logic Full on-chip hardware support of semaphore signaling between ports Fully asynchronous operation from either port Separate upper-byte and lower-byte control...

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SeekIC No. : 004230317 Detail

40889: Features: M/S = VIH for BUSY output flag on Master, M/S = VIL for BUSY input on Slave Busy and Interrupt Flags On-chip port arbitration logic Full on-chip hardware support of semaphore signaling be...

floor Price/Ceiling Price

Part Number:
40889
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description



Features:

M/S = VIH for BUSY output flag on Master, M/S = VIL for BUSY input on Slave
Busy and Interrupt Flags
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling between ports
Fully asynchronous operation from either port
Separate upper-byte and lower-byte controls for multiplexedbus and bus matching compatibility
LVTTL-compatible, single 3.3V (±0.3V) power supply
Available in a 100-pin TQFP
Industrial temperature range (40°C to +85°C) is available for selected speeds
True Dual-Ported memory cells which allow simultaneous access of the same memory location
High-speed access
Commercial: 15/20ns (max.)
Industrial: 20ns (max.)
Low-power operation
IDT70V38L
Active: 440mW (typ.)
Standby: 660µW (typ.)
 Dual chip enables allow for depth expansion without external logic
IDT70V38 easily expands data bus width to 36 bits or more using the Master/Slave select when cascading more than one device



Pinout

  Connection Diagram
NOTES:
1. All Vcc pins must be connected to power supply.
2. All GND pins must be connected to ground.
3. Package body is approximately 14mm x 14mm x 1.4mm.
4. This package code is used to reference the package diagram.
5. This text does not indicate orientation of the actual part-marking.



Specifications

Symbol
Rating
Commercial
& Industrial
Unit
VTERM
Terminal Voltage
with respect to GND
-0.5 to +4.6
V
VTER(2)
Terminal Voltage
-55 to +125
°C
TSTG
Temperature
Under Bias
-65 to +150
°C
IOUT
DC Output Current
50
mA

NOTES:
1. Stresses 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.
2. VTERM must not exceed Vcc + 0.3V for more than 25% of the cycle time or 10ns maximum, and is limited to < 20mA for the period of VTERM > Vcc + 0.3V.




Description

The IDT70V38 is a high-speed 64K x 18 Dual-Port Static RAM. The IDT70V38 is designed to be used as a stand-alone 1152K-bit Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 36-bit-or-more word system. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 36-bit or wider memory system applications results in full-speed, error-free operation without the need for additional discrete logic. This IDT70V38 provides two independent ports with separate control, address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory.

An automatic power down feature controlled by the chip enables (either CE0 or CE1) permit the on-chip circuitry of each port to enter a very low standby power mode. Fabricated using IDT's CMOS high-performance technology, these IDT70V38 typically operate on only 440mW of power.

The IDT70V38 is packaged in a 100-pin Thin Quad Flatpack (TQFP).




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