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Analog Devices DS80C323-MCD+ — Discrete Semiconductors
Analog Devices

DS80C323-MCD+ 8051 MCU, 18MHz, ROMless, 40-PDIP

MPNDS80C323-MCD+
End of Life

Maxim Integrated DS80C323-MCD+, 8-bit 8051 MCU, 18MHz, ROMless, 256 x 8 RAM, 2.7V-5.5V, 0°C-70°C, 40-PDIP.

$11.36Ref. price · indicative, final on quote
DS80C323-MCD+ datasheet
Packaging40-DIP (0.600", 15.24mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

DS80C323-MCD+ Technical Specifications
ParameterValue
Series80C
Mounting typeThrough Hole
Oscillator typeExternal
Program memory typeROMless
Voltage - supply (Vcc (Vdd))2.7V ~ 5.5V
Operating temperature0°C ~ 70°C (TA)
Speed18MHz
PackageTube
RAM size256 x 8
Core size8-Bit
PeripheralsPower-Fail Reset, WDT
ConnectivityEBI/EMI, SIO, UART/USART
Number of i (O)32
Core processor8051
Case40-DIP (0.600\", 15.24mm)

Product details

What this 8051 MCU is and where it fits

The Maxim Integrated DS80C323-MCD+ is an 8-bit microcontroller built around the 8051 core, running at 18 MHz. It is a ROMless device — all program memory must be supplied externally via the external bus interface (EBI/EMI). On-chip RAM is 256 x 8 bytes. The part integrates a power-fail reset and a watchdog timer (WDT) for basic system supervision. Connectivity includes SIO and UART/USART serial interfaces, plus 32 general-purpose I/O lines. It operates from 2.7 V to 5.5 V over the commercial temperature range of 0°C to 70°C, and is housed in a 40-pin PDIP (0.600" body) for through-hole assembly.

Lifecycle and sourcing posture

The DS80C323-MCD+ carries an Active lifecycle status per the manufacturer. It is ROHS3 compliant.

Frequently asked questions

Does DS80C323-MCD+ have internal ROM?

No, this is a ROMless device. All program memory must be provided externally.

What is the closest pin-compatible alternative to DS80C323-MCD+?

Within the same 80C family, the DS80C320 series includes internal ROM variants and shares the same 40-pin PDIP footprint. Verify the specific memory type and speed grade against your firmware requirements before substituting.

Where can I buy DS80C323-MCD+?

We source this part to order. Availability and pricing are confirmed at quote time.