Renesas IDT6116SA15TP

Overview

IDT6116SA15TP from Integrated Device Technology is a 16K-bit (2K × 8) high-speed CMOS static RAM with 15 ns maximum access time, TTL-compatible I/O, and full static operation requiring no clocks or refresh. It operates at 5.0 V ±10%, supports military-grade temperature range (–55°C to +125°C), and is packaged in 24-pin plastic DIP (300 mil). It serves as main memory or buffer storage in real-time embedded controllers and avionics systems.

For engineers reviewing the IDT6116SA15TP datasheet, IDT6116SA15TP pinout, IDT6116SA15TP application, or IDT6116SA15TP equivalent, key selection criteria include guaranteed 15 ns read cycle time, TTL-level compatibility, standby current of 40 mA (TTL-level) and 2 mA (CMOS-level), battery-backed data retention capability (LA variant only), and MIL-STD-883 Class B compliance for harsh-environment deployment.

Technical Context

The IDT6116SA15TP implements fully static asynchronous logic with independent chip select (CS), output enable (OE), and write enable (WE) controls, enabling flexible bus interfacing without clocking. Its address decoder drives a 128 × 128 memory array, supporting single-cycle read/write operations with address access time (tAA) ≤15 ns and read cycle time (tRC) = 15 ns.

It features dual standby modes: TTL-level standby (ISB = 40 mA max) when CS > VIH, and ultra-low-power CMOS-level standby (ISB1 = 2 mA max) when CS > VHC and inputs held valid. Input/output leakage currents are limited to 10 µA (military grade), and all pins meet TTL voltage thresholds (VIH ≥2.2 V, VIL ≤0.8 V).

Key Specifications

Pinout & Package

Package: 24-pin plastic DIP (300 mil, P24-1), through-hole mounting, JEDEC MS-001 compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar static RAM applications.

Compared with IDT6116SA15TP, CY62167EV30LL-45ZSXI offers greater density but sacrifices 5 V compatibility and speed, while AS6C1008-15PCN matches access time but requires layout changes and forfeits military-grade reliability-making IDT6116SA15TP the sole choice for legacy 5 V, MIL-spec, 2K × 8 applications.

Availability

IDT6116SA15TP is available at Aetrix Electronics and suitable for avionics data buffering, industrial PLC memory modules, military radio baseband storage, and automated test equipment pattern storage requiring stable component supply across extended product lifecycles.

Supply support for IDT6116SA15TP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Integrated Device Technology (IDT) was a fabless semiconductor company specializing in timing, memory interface, and RF solutions before its acquisition by Renesas in 2019. It pioneered high-reliability SRAMs for defense and telecom infrastructure.

IDT6116SA15TP belongs to IDT's legacy 6116-series high-speed CMOS SRAM family, designed specifically for mission-critical embedded systems demanding MIL-qualified performance, zero-refresh operation, and direct TTL bus interfacing.

FAQ

What is the maximum operating temperature range for IDT6116SA15TP?

IDT6116SA15TP is rated for –55°C to +125°C operation and is manufactured to MIL-STD-883 Class B specifications. This makes it suitable for deployment in extreme environments such as aircraft engine bays, missile guidance sections, and downhole oilfield tools where thermal stability is non-negotiable. The IDT6116SA15TP maintains full functionality across this range without derating.

Does IDT6116SA15TP require external refresh circuitry?

No, IDT6116SA15TP is a fully static RAM and requires no clocks or refresh cycles. Its CMOS latch-based memory cells retain data indefinitely as long as VCC is applied and CS remains asserted. This eliminates timing controller overhead and jitter sensitivity-key advantages in deterministic real-time systems using IDT6116SA15TP.

Is IDT6116SA15TP pin-compatible with other 6116-series variants like IDT6116LA20TP?

IDT6116SA15TP shares identical pinout and footprint with all 24-pin DIP-packaged 6116-series devices, including IDT6116LA20TP. However, differences in access time (15 ns vs. 20 ns), standby current (40 mA vs. 25 mA), and data retention capability (SA lacks battery backup) mean functional substitution requires validation of timing margins and power budgets in the target design.

What is the minimum supply voltage required for IDT6116SA15TP to retain data?

IDT6116SA15TP does not support low-voltage data retention-the LA variant (e.g., IDT6116LA15TP) provides 2 V data retention, but IDT6116SA15TP requires full 4.5–5.5 V operation for both active and standby modes. Attempting data retention below 4.5 V risks corruption; for battery backup, the LA version must be selected instead of IDT6116SA15TP.

Can IDT6116SA15TP be used with modern 3.3 V microcontrollers?

IDT6116SA15TP is strictly a 5 V device with TTL-compatible thresholds (VIH ≥2.2 V, VIL ≤0.8 V), so direct interfacing with 3.3 V I/O is unsafe without level translation. Driving its inputs from 3.3 V may violate VIH minimum under worst-case VCC tolerance; likewise, its 5 V outputs can damage 3.3 V receivers. Use of IDT6116SA15TP mandates 5 V system architecture or discrete level shifters.