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| Part Details | Price (USD) | Global Stock | Lead Time | Date Code | Package | Package Style | Memory Density | Memory Organization | Supply Voltage-Nom | Access Time-Max | Temperature Grade | Mounting Feature |
 AT27C256R-70JU Microchip AT27C256R Series 5.5 V 256 Kb (32 K x 8) 70 ns Through Hole EPROM OTP - PLCC-32 | Qty Unit Price 1 $2.37 20 $2.32 40 $2.30 125 $2.26 250 $2.21 | 5,941 Ready to Ship! | 6 Weeks | 2442 | Tube | PLCC-32 | 256kb | 32 K x 8 | 5V | 70ns | Industrial | Surface Mount |
| Qty Unit Price 1 $2.54 15 $2.48 30 $2.46 100 $2.41 200 $2.36 | 1,332 Ready to Ship! | 6 Weeks | 2513 | Tube | PDIP-28 | 256kb | 32 K x 8 | 4.5V to 5.5V | 45ns | Industrial | Through Hole | |
| Qty Unit Price 1 $2.77 15 $2.71 30 $2.68 100 $2.63 200 $2.58 | 915 Ready to Ship! | 6 Weeks | 2347 | Tube | PDIP-28 | 512kb | 64 K x 8 | 5V | 45ns | Industrial | Through Hole | |
| AT27C512R-70JU Microchip AT27C512R Series 5.5 V 512 Kb (64 K x 8) 70 ns Through Hole EPROM OTP - PLCC-32 | Qty Unit Price 1 $2.56 15 $2.51 30 $2.48 100 $2.43 200 $2.38 | 262 Ready to Ship! | 6 Weeks | 2402 | Tube | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount |
| AT27C010-70JU Microchip AT27C010 Series 1 Mb (128 K x 8) 5.5 V One-Time Programmable Read-Only Memory | Qty Unit Price 1 $3.18 15 $3.11 30 $3.08 100 $3.02 200 $2.95 | 249 Ready to Ship! | 4 Weeks | 2343 | Tube | PLCC-32 | 1Mb | 128 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount |
| AT27C020-55JU Microchip AT27C020 Series 2 Mb (256 K x 8) 5.5 V One-time Programmable Read-only Memory | Qty Unit Price 32 $3.77 64 $3.73 96 $3.70 128 $3.68 160 $3.63 | 192 Ready to Ship! | 4 Weeks | 2445 | Tube | PLCC-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 55ns | Industrial | Surface Mount |
| Qty Unit Price 12 $9.81 | 156 Ready to Ship! | 4 Weeks | 2430 | Tube | PDIP-32 | 4Mb | 512K x 8 | 5V | 70ns | Industrial | Through Hole | |
| Qty Unit Price 1 $4.23 10 $4.15 25 $4.08 50 $4.03 125 $3.92 | 101 Ready to Ship! | 4 Weeks | 2414 | Tube | PDIP-32 | 1Mb | 128 K x 8 | 5V | 70ns | Industrial | Through Hole | |
 AT27C020-55PU Microchip AT27C020 Series 2 Mb (256K x 8) One-Time Programmable Read-only Memory -DIP-32 | Qty Unit Price 12 $4.79 24 $4.74 48 $4.68 60 $4.66 180 $4.55 | 84 Ready to Ship! | 7 Weeks | 2327 | Tube | PDIP-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 55ns | Industrial | Through Hole |
| Qty Unit Price 750 $2.27 | 0 | 6 Weeks | Reel | |||||||||
| Qty Unit Price 500 $7.62 | 0 | 4 Weeks | Reel | |||||||||
| Qty Unit Price 750 $2.53 | 0 | 6 Weeks | Reel | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 45ns | Industrial | Surface Mount | ||
| Qty Unit Price 750 $2.47 | 0 | 4 Weeks | Reel | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount | ||
 AT27BV256-70JU-T Microchip 256K (32K x 8) Unregulated Battery Voltage, Highspeed, One-time Programmable, Re | Qty Unit Price 750 $3.58 | 0 | Std. Mfr. Pkg | |||||||||
| Qty Unit Price 500 $3.90 | 0 | Std. Mfr. Pkg | ||||||||||
 AT27BV256-70JU Microchip AT27BV256 Series 256 kb (32K x 8) One-Time Programmable Read-Only Memory-PLCC-32 | Qty Unit Price 32 $3.27 | 0 | 6 Weeks | Tube | PLCC-32 | 256kb | 32 K x 8 | 2.7V to 3.6V | 70ns | Industrial | Surface Mount | |
| AT27C020-90JU Microchip AT27C020 Series 2 Mb (256 K x 8) 5.5 V One-time Programmable Read-only Memory | Qty Unit Price 32 $3.65 | 0 | 4 Weeks | Tube | PLCC-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Surface Mount | |
 AT27C020-90PU Microchip AT27C020 Series 2 Mb (256K x 8) One-Time Programmable Read-Only Memory-DIP-32 | Qty Unit Price 1 $5.03 5 $4.95 20 $4.83 50 $4.75 125 $4.62 | 0 | 4 Weeks | Tube | PDIP-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Through Hole | |
| Qty Unit Price 32 $7.23 64 $7.19 96 $7.16 128 $7.12 | 0 | 4 Weeks | Tube | PLCC-32 | 4Mb | 512 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount | ||
| Qty Unit Price 32 $7.06 64 $7.01 96 $6.99 128 $6.95 | 0 | 4 Weeks | Tube | PLCC-32 | 4Mb | 512 K x 8 | 5V | 90ns | Industrial | Surface Mount | ||
| Qty Unit Price 12 $10.02 24 $9.95 36 $9.91 48 $9.88 60 $9.79 | 0 | 7 Weeks | Tube | PDIP-32 | 4Mb | 512 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Through Hole | ||
| Qty Unit Price 32 $12.29 | 0 | 4 Weeks | Tube | PLCC-32 | 8Mb | 1 M x 8 | 4.5V to 5.5V | 90ns | Industrial | Surface Mount | ||
| Qty Unit Price 12 $11.95 24 $11.86 36 $11.81 48 $11.78 60 $11.67 | 0 | 7 Weeks | Tube | DIP-32 | 8Mb | 1Mx8 | 4.5V to 5.5V | 90ns | Through Hole | |||
| Qty Unit Price 10 $4.13 30 $4.05 40 $4.03 100 $3.97 150 $3.91 | 0 | 4 Weeks | Tube | |||||||||
| Qty Unit Price 27 $3.80 54 $3.76 81 $3.73 108 $3.71 135 $3.65 | 0 | 4 Weeks | Tube |
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