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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 |
 AT27C512R-70PU Microchip AT27C512R Series 5.5 V 512 Kb (64 K x 8) 70 ns Through Hole EPROM OTP - PDIP-28 | Qty Web Price 1 $2.93 15 $2.87 30 $2.83 100 $2.78 200 $2.72 | 8,914 Ready to Ship! | 4 Weeks | 1451 | Tube | PDIP-28 | 512kb | 64 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Through Hole |
 AT27C256R-70JU Microchip AT27C256R Series 5.5 V 256 Kb (32 K x 8) 70 ns Through Hole EPROM OTP - PLCC-32 | Qty Web Price 1 $2.44 20 $2.38 40 $2.36 125 $2.32 250 $2.27 | 5,846 Ready to Ship! | 4 Weeks | 2338 | Tube | PLCC-32 | 256kb | 32 K x 8 | 5V | 70ns | Industrial | Surface Mount |
| AT27C256R-70PU Microchip AT27C256R Series 5.5 V 256 Kb (32 K x 8) 70 ns Through Hole EPROM OTP - PDIP-28 | Qty Web Price 1 $2.56 20 $2.51 40 $2.48 125 $2.44 250 $2.39 | 4,412 Ready to Ship! | 4 Weeks | 2405 | Tube | PDIP-28 | 256kb | 32 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Through Hole |
| Qty Web Price 1 $4.24 10 $4.15 25 $4.09 75 $4.02 150 $3.92 | 2,453 Ready to Ship! | 4 Weeks | 2407 | Tube | PDIP-32 | 1Mb | 128 K x 8 | 5V | 70ns | Industrial | Through Hole | |
| Qty Web Price 1 $2.56 20 $2.51 40 $2.48 125 $2.44 250 $2.39 | 2,137 Ready to Ship! | 4 Weeks | 2431 | Tube | PDIP-28 | 256kb | 32 K x 8 | 4.5V to 5.5V | 45ns | Industrial | Through Hole | |
| Qty Web Price 12 $10.50 | 924 Ready to Ship! | 4 Weeks | 2430 | Tube | PDIP-32 | 4Mb | 512K x 8 | 5V | 70ns | Industrial | Through Hole | |
| AT27C010-70JU Microchip AT27C010 Series 1 Mb (128 K x 8) 5.5 V One-Time Programmable Read-Only Memory | Qty Web Price 1 $3.23 15 $3.16 30 $3.12 100 $3.07 200 $3.00 | 896 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 Web Price 32 $4.41 128 $4.28 320 $4.19 800 $4.10 1,280 $3.98 | 544 Ready to Ship! | 6 Weeks | 2436 | Tube | PLCC-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 55ns | Industrial | Surface Mount |
 AT27C020-55PU Microchip AT27C020 Series 2 Mb (256K x 8) One-Time Programmable Read-only Memory -DIP-32 | Qty Web Price 12 $5.65 48 $5.47 180 $5.30 480 $5.18 1,200 $4.99 | 540 Ready to Ship! | 31 Weeks | 2402 | Tube | PDIP-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 55ns | 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 Web Price 1 $2.62 20 $2.57 40 $2.54 125 $2.50 250 $2.44 | 462 Ready to Ship! | 4 Weeks | 2335 | Tube | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount |
| Qty Web Price 1 $2.84 15 $2.78 30 $2.75 100 $2.70 200 $2.64 | 449 Ready to Ship! | 4 Weeks | 2425 | Tube | PDIP-28 | 512kb | 64 K x 8 | 5V | 45ns | Industrial | Through Hole | |
 AT27C4096-90PU Microchip AT27C4096 Series One Time Programmable 4 Mb ( 256K x 16) 90ns EPROM - PDIP-40 | Qty Web Price 10 $7.94 | 280 Ready to Ship! | 4 Weeks | 2405 | Tube | PDIP-40 | 4Mb | 256 K x 16 | 5V | 90ns | Industrial | Surface Mount |
| Qty Web Price 12 $13.30 24 $13.21 36 $13.16 48 $13.12 60 $13.00 | 132 Ready to Ship! | 31 Weeks | 2419 | Tube | DIP-32 | 8Mb | 1Mx8 | 4.5V to 5.5V | 90ns | Through Hole | ||
| Qty Web Price 750 $2.43 | 0 | 6 Weeks | Reel | |||||||||
| Qty Web Price 500 $8.06 | 0 | 4 Weeks | Reel | |||||||||
| Qty Web Price 750 $2.69 | 0 | 30 Weeks | Reel | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 45ns | Industrial | Surface Mount | ||
| Qty Web Price 750 $2.63 | 0 | 30 Weeks | Reel | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount | ||
| Qty Web Price 32 $4.76 128 $4.61 320 $4.52 800 $4.43 1,280 $4.29 | 0 | 4 Weeks | Tube | PLCC-32 | 1Mb | 128 K x 8 | 2.7V to 5.5V | 90ns | Industrial | Surface Mount | ||
 AT27BV256-70JU Microchip AT27BV256 Series 256 kb (32K x 8) One-Time Programmable Read-Only Memory-PLCC-32 | Qty Web Price 32 $3.49 | 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 Web Price 32 $3.78 | 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 Web Price 12 $4.75 | 0 | 4 Weeks | Tube | PDIP-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Through Hole | |
| AT27C020-90PU Microchip AT27C020 Series 2 Mb (256K x 8) One-Time Programmable Read-Only Memory-DIP-32 | Qty Web Price 12 $5.53 48 $5.36 180 $5.19 480 $5.08 1,200 $4.89 | 0 | 4 Weeks | Tube | PDIP-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Through Hole | |
| Qty Web Price 32 $7.57 64 $7.52 96 $7.49 128 $7.45 | 0 | 6 Weeks | Tube | PLCC-32 | 4Mb | 512 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount | ||
| Qty Web Price 32 $7.38 64 $7.33 96 $7.30 128 $7.27 | 0 | 4 Weeks | Tube | PLCC-32 | 4Mb | 512 K x 8 | 5V | 90ns | Industrial | Surface Mount | ||
| Qty Web Price 12 $10.68 48 $10.58 120 $10.51 300 $10.45 480 $10.35 | 0 | 32 Weeks | Tube | PDIP-32 | 4Mb | 512 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Through Hole |
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