Microchip Technology AT89C5121-ICSUL Microcontroller, Microprocessor, FPGA Modules
IC MCU 8BIT 16KB FLSH RAM 24SSOP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
AT89C5121-ICSUL
Series
Detailed Description
IC MCU 8BIT 16KB FLSH RAM 24SSOP
Package
24-SSOP (0.209", 5.30mm Width)
Key Features
Package / Case: 24-SSOP (0.209", 5.30mm Width); Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
AT89C5121-ICSUL Datasheet
Quick Jump:
Technical Specifications
Microchip Technology AT89C5121-ICSUL Microcontroller, Microprocessor, FPGA Modules technical specifications.
General
Series
89C
RAM Size
256 x 8
RoHS
Yes
Package / Case
24-SSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.85V ~ 5.4V
Lifecycle Status
Obsolete
Peripherals
LED, POR, WDT
Number of I/O
14
Alternate Parts Comparison (AT89C5121-ICSUL vs AT89C1051-24PC vs AT89C52-24JC vs AT89C51-24AC)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 24-SSOP | -- | 44-LCC | 44-TQFP |
| Mounting Type | Surface Mount | -- | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -- | 0°C ~ 70°C | 0°C ~ 70°C |
| Supply Voltage | 2.85V ~ 5.4V | -- | 4V ~ 6V | 4V ~ 6V |
| Core Processor | 80C51 | -- | 8051 | 8051 |
| Core Size | 8-Bit | -- | 8-Bit | 8-Bit |
| RAM Size | 256 x 8 | -- | 256 x 8 | 128 x 8 |
| Connectivity | SmartCard, UART/USART | -- | SIO, UART/USART | UART/USART |
| Number of I/O | 14 | -- | 32 | 32 |
| Oscillator Type | Internal | -- | Internal | Internal |
| Program Memory Size | 16KB (16K x 8) | -- | 8KB (8K x 8) | 4KB (4K x 8) |
| Program Memory Type | Flash RAM | -- | Flash | Flash |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
MC9S08PB16MTJNXP SemiconductorsNXP
IC MCU 8BIT 16KB FLASH 20TSSOP
MC9S08PL16SCTGNXP SemiconductorsNXP
IC MCU 8BIT 16KB FLASH 16TSSOP
MC9S08PL16SCTJNXP SemiconductorsNXP
IC MCU 8BIT 16KB FLASH 20TSSOP
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
