Renesas UPD4416016G5-A15-9JF-A

Overview

UPD4416016G5-A15-9JF-A from Renesas Electronics is a 16-Mbit CMOS fast static RAM organized as 1,048,576 words × 16 bits, operating at 3.3 V ± 0.3 V with 15 ns maximum access time, packaged in a 54-pin plastic TSOP (II), and used for high-speed data buffering in embedded controllers and communication interface modules.

For engineers reviewing the UPD4416016G5-A15-9JF-A datasheet, UPD4416016G5-A15-9JF-A pinout, UPD4416016G5-A15-9JF-A application, or UPD4416016G5-A15-9JF-A equivalent, key selection considerations include byte-select control (/LB and /UB), low standby current (10 mA), LVTTL-compatible timing, and lead-free TSOP-II packaging compliance.

Technical Context

The UPD4416016G5-A15-9JF-A implements a full CMOS SRAM architecture with dual-byte write enable (/LB for I/O1–I/O8, /UB for I/O9–I/O16), independent /CS and /OE controls, and internal address decoding across A0–A19. It supports three distinct write control modes: /WE-driven, /CS-driven, and /LB-/UB-driven.

Its AC timing adheres to LVTTL interface standards with ≤3 ns input rise/fall times, uses 50 Ω output loads with 30 pF or 5 pF capacitive test conditions per JEDEC-compliant read/write cycle definitions, and guarantees tAA = tACS = tOE = 15/15/7 ns respectively under recommended operating conditions.

Key Specifications

Pinout & Package

The UPD4416016G5-A15-9JF-A is housed in a 54-pin plastic TSOP (II) package measuring 10.16 mm × 22.22 mm with 0.8 mm lead pitch and gull-wing leads. Pin 1 index is marked on the top surface per package drawing S54G5-80-9JF-3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast SRAM applications.

Compared with IS61LV102416AL-12T, UPD4416016G5-A15-9JF-A trades 3 ns of speed for 50 mA lower active current and single-chip 16-bit interface; versus AS6C1008-15TIN, it delivers native 16-bit width and reduced interconnect count at higher per-unit cost.

Availability

UPD4416016G5-A15-9JF-A is available at Aetrix Electronics and suitable for network packet buffering, industrial PLC data caching, and DSP code/data memory applications requiring stable component supply and long-term industrial lifecycle support.

Supply support for UPD4416016G5-A15-9JF-A 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

Renesas Electronics Corporation is a Japanese semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and memory solutions for industrial and embedded markets.

The UPD4416016G5-A15-9JF-A belongs to Renesas' legacy CMOS SRAM product line, designed specifically for high-speed, low-power data buffering in commercial-grade embedded systems requiring LVTTL compatibility and robust TSOP packaging.

FAQ

What is the maximum operating frequency supported by the UPD4416016G5-A15-9JF-A?

The UPD4416016G5-A15-9JF-A does not specify a clock frequency but defines timing via access and cycle parameters. With tRC = 15 ns minimum read/write cycle time, it supports effective bus rates up to approximately 66 MHz in synchronous interface configurations. Actual achievable throughput depends on controller handshake implementation and bus protocol overhead. The UPD4416016G5-A15-9JF-A datasheet confirms tAA = tACS = 15 ns and tWC = 15 ns as hard limits.

Does the UPD4416016G5-A15-9JF-A require external pull-up resistors on control pins?

Yes - per Renesas CMOS handling guidelines, all unused or floating inputs on the UPD4416016G5-A15-9JF-A (including /CS, /WE, /OE, /LB, /UB, and address lines) must be actively pulled to VCC or GND using appropriate resistors to prevent noise-induced malfunction. The UPD4416016G5-A15-9JF-A has no internal pull-ups; leaving control pins unconnected violates recommended operating conditions and risks undefined behavior.

Is the UPD4416016G5-A15-9JF-A pin-compatible with earlier μPD4416016 variants like the -A17 version?

No - while both share the same 54-pin TSOP (II) package and core functionality, the UPD4416016G5-A15-9JF-A specifies 15 ns access time and corresponding AC timing, whereas the -A17 variant is rated for 17 ns. Timing parameter differences mean direct substitution may violate setup/hold requirements in timing-critical designs. The UPD4416016G5-A15-9JF-A must be validated in-system if replacing a slower variant.

What is the purpose of the IC pin (pin 30) on the UPD4416016G5-A15-9JF-A?

Pin 30 labeled "IC" on the UPD4416016G5-A15-9JF-A is an internal connection node that must be externally tied to GND per the official datasheet note. Leaving it unconnected or floating may cause functional instability or increased power consumption. This requirement is explicitly stated in the Pin Configuration section of the UPD4416016G5-A15-9JF-A datasheet and applies regardless of operating mode.

Can the UPD4416016G5-A15-9JF-A operate reliably at 3.0 V supply voltage?

Yes - the UPD4416016G5-A15-9JF-A is fully specified down to 3.0 V per its Recommended Operating Conditions table, with guaranteed performance including tAA ≤ 15 ns and ICC ≤ 250 mA. However, at 3.0 V, margin for noise immunity decreases; VIH minimum drops to 2.0 V and VOL remains ≤ 0.4 V, so interfacing with 3.3 V LVTTL drivers requires verification of logic level compatibility. The UPD4416016G5-A15-9JF-A maintains full functionality across the entire 3.0–3.6 V range.