| Mfr. Part # | AT27BV256-70TI | AT28HC256F-90TU | AT28BV256-20TU |
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology |
| Description | IC EPROM 256K PARALLEL 28TSOP | IC EEPROM 256K PARALLEL 28TSOP | IC EEPROM 256K PARALLEL 28TSOP |
| Datasheet | |||
| RoHS | |||
| Specifications | |||
Mounting Type | Surface Mount | Surface Mount | Surface Mount |
Package / Case | 28-TSSOP (0.465, 11.80mm Width) | 28-TSSOP (0.465, 11.80mm Width) | 28-TSSOP (0.465, 11.80mm Width) |
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 | Tray | Tray | Tray |
Published | 1998 | 1997 | 1997 |
Part Status | Obsolete | Active | Active |
Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
Voltage - Supply | 2.7V~3.6V 4.5V~5.5V | 5V | 3.3V |
Base Part Number | AT27BV256 | AT28HC256 | AT28BV256 |
Memory Size | 256Kb 32K x 8 | 256Kb 32K x 8 | 256Kb 32K x 8 |
Access Time | 70ns | 90ns | 200ns |
Memory Format | EPROM | EEPROM | EEPROM |
Memory Interface | Parallel | Parallel | Parallel |
RoHS Status | Non-RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
Factory Lead Time | - | 7 Weeks | 15 Weeks |
Contact Plating | - | Tin | Tin |
Mount | - | Surface Mount | Surface Mount |
Number of Pins | - | 28 | 28 |
Current - Supply (Nom) | - | 80mA | 15mA |
JESD-609 Code | - | e3 | e3 |
Pbfree Code | - | yes | yes |
Number of Terminations | - | 28 | 28 |
Terminal Position | - | DUAL | DUAL |
Peak Reflow Temperature (Cel) | - | NOT SPECIFIED | - |
Number of Functions | - | 1 | 1 |
Terminal Pitch | - | 0.55mm | 0.55mm |
Frequency | - | 90GHz | 5MHz |
Time@Peak Reflow Temperature-Max (s) | - | NOT SPECIFIED | - |
Qualification Status | - | Not Qualified | - |
Power Supplies | - | 5V | - |
Operating Mode | - | ASYNCHRONOUS | - |
Organization | - | 32KX8 | 32KX8 |
Memory Width | - | 8 | 8 |
Write Cycle Time - Word, Page | - | 3ms | 10ms |
Density | - | 256 kb | 256 kb |
Standby Current-Max | - | 0.0003A | 0.00005A |
Programming Voltage | - | 5V | 3V |
Endurance | - | 10000 Write/Erase Cycles | 10000 Write/Erase Cycles |
Write Cycle Time-Max (tWC) | - | 3ms | 10ms |
Data Polling | - | YES | YES |
Toggle Bit | - | YES | YES |
Command User Interface | - | NO | - |
Page Size | - | 64words | 64words |
Length | - | 11.8mm | 11.8mm |
Height Seated (Max) | - | 1.2mm | 1.2mm |
Width | - | 8mm | 8mm |
Lead Free | - | Lead Free | Lead Free |
Interface | - | - | Parallel, SPI |
Voltage - Supply (Max) | - | - | 3.6V |
Voltage - Supply (Min) | - | - | 2.7V |
REACH SVHC | - | - | No SVHC |
Radiation Hardening | - | - | No |
| Pricing(USD) | |||
| Grads Price | - | Quantity Unit Price 1+ $485.0355 10+ $457.5806 100+ $431.6798 500+ $407.2451 1000+ $384.1935 | Quantity Unit Price 1+ $132.58 10+ $125.0755 100+ $117.9957 500+ $111.3167 1000+ $105.0158 |
| Availability | - | 3805 | 41 |
| Price | - | $485.0355 | $132.58 |
| Quantity |
In Stock