| Mfr. Part # | AT27C256R-45RI | AT27C256R-70PU | AT27C256R-45JU |
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology |
| Description | IC EPROM 256K PARALLEL 28SOIC | ATMEL AT27C256R-70PU IC, EPROM 256K, 4.5-5.5V, TUBE14 | IC EPROM 256K PARALLEL 32PLCC |
| Datasheet | |||
| RoHS | |||
| Specifications | |||
Mounting Type | Surface Mount | Through Hole | Surface Mount |
Package / Case | 28-SOIC (0.342, 8.69mm Width) | 28-DIP (0.600, 15.24mm) | 32-LCC (J-Lead) |
Supplier Device Package | 28-SOIC | - | - |
Memory Types | Non-Volatile | Non-Volatile | Non-Volatile |
Operating Temperature | -40°C~85°C TC | -40°C~85°C TC | -40°C~85°C TC |
Packaging | Tube | Tube | Tube |
Published | 1998 | 1997 | 1997 |
Part Status | Obsolete | Active | Active |
Moisture Sensitivity Level (MSL) | 2 (1 Year) | 1 (Unlimited) | 2 (1 Year) |
Voltage - Supply | 4.5V~5.5V | 4.5V~5.5V | 4.5V~5.5V |
Base Part Number | AT27C256 | AT27C256 | AT27C256 |
Memory Size | 256Kb 32K x 8 | 256Kb 32K x 8 | 256Kb 32K x 8 |
Access Time | 45ns | 70ns | 45ns |
Memory Format | EPROM | EPROM | EPROM |
Memory Interface | Parallel | Parallel | Parallel |
RoHS Status | Non-RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
Factory Lead Time | - | 7 Weeks | 3 Weeks |
Contact Plating | - | Tin | Tin |
Mount | - | Through Hole | Surface Mount |
Number of Pins | - | 28 | 32 |
Usage Level | - | Industrial grade | - |
JESD-609 Code | - | e3 | e3 |
Pbfree Code | - | yes | yes |
Number of Terminations | - | 28 | 32 |
Terminal Position | - | DUAL | QUAD |
Number of Functions | - | 1 | 1 |
Supply Voltage | - | 5V | 5V |
Terminal Pitch | - | 2.54mm | 1.27mm |
Frequency | - | 70GHz | 45GHz |
Operating Supply Voltage | - | 5V | 5V |
Power Supplies | - | 5V | 5V |
Voltage | - | 7V | - |
Nominal Supply Current | - | 20mA | 20mA |
Organization | - | 32KX8 | - |
Output Characteristics | - | 3-STATE | 3-STATE |
Density | - | 256 kb | 256 kb |
Standby Current-Max | - | 0.0001A | 0.0001A |
I/O Type | - | COMMON | COMMON |
Height | - | 4.826mm | 3.17mm |
Length | - | 37.34mm | 11.5mm |
Width | - | 14.4mm | 14.04mm |
REACH SVHC | - | No SVHC | No SVHC |
Radiation Hardening | - | No | No |
Lead Free | - | Lead Free | Lead Free |
Peak Reflow Temperature (Cel) | - | - | 245 |
Time@Peak Reflow Temperature-Max (s) | - | - | 40 |
Programming Voltage | - | - | 13V |
| Pricing(USD) | |||
| Grads Price | - | Quantity Unit Price 1+ $5.58943 10+ $5.27304 100+ $4.97457 500+ $4.69299 1000+ $4.42735 | Quantity Unit Price 1+ $5.91531 10+ $5.58048 100+ $5.26461 500+ $4.96661 1000+ $4.68548 |
| Availability | - | 6900 | 149 |
| Price | - | $5.58943 | $5.91531 |
| Quantity |
In Stock