DP8420AV-20
Texas Instruments
The Texas Instruments DP8420AV-20 is a DRAM Controller IC. It operates within a voltage range of 4.5V to 5.5V and has an operating temperature of 0°C to 70°C.
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35 pcs
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35 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The DP8421AV-20 from Texas Instruments is a microCMOS programmable Dynamic RAM controller and driver designed to interface between dynamic RAM and 8-, 16-, and 32-bit systems. It generates all necessary access control signal timing for DRAMs and includes an on-chip refresh request clock for automatic DRAM array refresh. Refreshes and accesses are arbitrated on-chip.
Key features include a high-precision delay line for critical DRAM access timing, microCMOS process for low power consumption, and high capacitance drivers for RAS, CAS, WE, and DRAM address signals. The device supports nibble, page, and static column DRAMs and provides byte enable signals for byte writing in word sizes up to 32 bits without external logic. The controller speed is selectable, with this model operating at 20 MHz.
This controller is available in a 68-PLCC (25.13x25.13) package and is designed for surface mounting. It operates within a temperature range of 0°C to 70°C and requires an operating voltage between 4.5V and 5.5V. The DP8421AV-20 is suitable for systems requiring efficient and reliable DRAM control.
| Qty | Low | High |
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| 1+ | $1.50 | $1.50 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
4.5V to 5.5V.
68-PLCC (25.13x25.13) and 68-LCC (J-Lead) surface mount packages.
0°C to 70°C.
20 MHz.
Dynamic RAM (DRAM) controller.
Surface mount.