AM9101C/DMC 256×4 Static R/W RAM IC DIP-22

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AM9101C/DMC 256×4 Static R/W RAM IC DIP-22 The AM9101C/DMC 256×4 Static R/W RAM IC DIP-22 is a 256 × 4-bit static random-access memory (SRAM) integrated circuit designed for fast and reliable data storage in digital systems. It provides 1024 bits of total memory capacity organized as 256 memory locations with 4-bit words, making it suitable for buffering, temporary storage, and small memory subsystems. This SRAM operates using static memory cells, meaning it does not require refresh cycles like DRAM. The device is compatible with TTL logic levels, making it easy to interface with microprocessors, microcontrollers, and digital logic circuits. It includes dual chip enable inputs, write enable control, and output disable control, providing flexible control over memory read and write operations. Features Static RAM architecture (no refresh required). 256 × 4-bit memory organization (1024-bit total storage). TTL-compatible input and output logic levels. High noise immunity (approximately 400mV). Dual chip enable control inputs for flexible system design. Output disable control for bus sharing. High output drive capability supporting two TTL loads. Low operating power consumption. Standby mode with reduced power dissipation. Fast access times suitable for digital memory applications. Pin Configuration Pin Number Pin Name Function / Description 1 A3 Address input bit 3 2 A2 Address input bit 2 3 A1 Address input bit 1 4 A0 Address input bit 0 (LSB) 5 A5 Address input bit 5 6 A6 Address input bit 6 7 A7 Address input bit 7 (MSB) 8 VSS Ground reference 9 DI1 Data input bit 1 10 DO1 Data output bit 1 11 DI2 Data input bit 2 12 DO2 Data output bit 2 13 DI3 Data input bit 3 14 DO3 Data output bit 3 15 DI4 Data input bit 4 16 DO4 Data output bit 4 17 CE2 Chip Enable input 2 18 OD Output Disable control 19 CE1 Chip Enable input 1 20 WE Write Enable input 21 A4 Address input bit 4 22 VCC +5V power supply Specifications Parameter Value Memory Organization 256×4bits Total Memory Capacity 1024bits Supply Voltage (VCC) 5VDC Data Retention Voltage 1.5VDC Access Time Up to 200ns Logic Compatibility TTL Compatible Operating Power (Typical) 125mW Operating Power (Maximum) 290mW Low Power Version (Typical) 100mW Low Power Version (Maximum) 175mW Output Drive Capability Two TTLL loads Number of Address Lines 8(A0–A7) Data Width 4bits Package Type DIP-22 Pin Count 22Pins Mounting Type Through Hole Applications Microprocessor memory expansion. Data buffering in digital systems. Embedded memory storage. Industrial control systems. Communication equipment. Digital test and measurement devices. Educational electronics projects. Small computer memory modules. Package Contents 1 x AM9101C/DMC 256×4 Static R/W RAM IC DIP-22 Datasheet AM9101C/DMC