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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 Unit Price 1 $2.73 15 $2.68 30 $2.65 100 $2.60 200 $2.54 | 8,382 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 Unit Price 1 $2.36 20 $2.31 40 $2.29 125 $2.25 250 $2.20 | 5,245 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 Unit Price 1 $2.45 15 $2.40 40 $2.36 100 $2.33 250 $2.27 | 5,062 Ready to Ship! | 4 Weeks | 2405 | Tube | PDIP-28 | 256kb | 32 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Through Hole |
| Qty Unit Price 1 $4.26 10 $4.17 25 $4.11 50 $4.06 125 $3.95 | 2,453 Ready to Ship! | 4 Weeks | 2407 | Tube | PDIP-32 | 1Mb | 128 K x 8 | 5V | 70ns | Industrial | Through Hole | |
| Qty Unit Price 1 $2.53 15 $2.47 30 $2.45 100 $2.40 200 $2.35 | 1,563 Ready to Ship! | 4 Weeks | 2431 | Tube | PDIP-28 | 256kb | 32 K x 8 | 4.5V to 5.5V | 45ns | Industrial | Through Hole | |
| Qty Unit Price 1 $2.76 15 $2.70 30 $2.67 100 $2.62 200 $2.57 | 1,289 Ready to Ship! | 28 Weeks | 2425 | Tube | PDIP-28 | 512kb | 64 K x 8 | 5V | 45ns | Industrial | Through Hole | |
| Qty Unit Price 1 $10.68 10 $10.51 30 $10.43 125 $10.33 300 $10.17 | 708 Ready to Ship! | 4 Weeks | 2430 | Tube | PDIP-32 | 4Mb | 512K x 8 | 5V | 70ns | Industrial | Through Hole | |
| AT27C020-55JU Microchip AT27C020 Series 2 Mb (256 K x 8) 5.5 V One-time Programmable Read-only Memory | Qty Unit Price 32 $4.12 128 $4.05 320 $4.01 800 $3.96 1,280 $3.90 | 608 Ready to Ship! | 8 Weeks | 2437 | Tube | PLCC-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 55ns | 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 $3.16 15 $3.10 30 $3.06 100 $3.01 200 $2.94 | 591 Ready to Ship! | 4 Weeks | 2343 | Tube | PLCC-32 | 1Mb | 128 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount |
| 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 $2.55 15 $2.50 30 $2.47 100 $2.43 200 $2.37 | 462 Ready to Ship! | 4 Weeks | 2335 | Tube | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount |
 AT27C020-55PU Microchip AT27C020 Series 2 Mb (256K x 8) One-Time Programmable Read-only Memory -DIP-32 | Qty Unit Price 12 $5.22 48 $5.13 180 $5.05 480 $4.99 1,200 $4.89 | 300 Ready to Ship! | 29 Weeks | 2402 | Tube | PDIP-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 55ns | Industrial | Through Hole |
 AT27C4096-90PU Microchip AT27C4096 Series One Time Programmable 4 Mb ( 256K x 16) 90ns EPROM - PDIP-40 | Qty Unit Price 10 $7.42 | 280 Ready to Ship! | 4 Weeks | 2405 | Tube | PDIP-40 | 4Mb | 256 K x 16 | 5V | 90ns | Industrial | Surface Mount |
| Qty Unit Price 12 $12.77 24 $12.68 36 $12.63 48 $12.59 60 $12.48 | 132 Ready to Ship! | 29 Weeks | 2419 | Tube | DIP-32 | 8Mb | 1Mx8 | 4.5V to 5.5V | 90ns | Through Hole | ||
| Qty Unit Price 750 $2.43 | 0 | 8 Weeks | Reel | |||||||||
| Qty Unit Price 500 $8.05 | 0 | 4 Weeks | Reel | |||||||||
| Qty Unit Price 750 $2.66 | 0 | 22 Weeks | Reel | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 45ns | Industrial | Surface Mount | ||
| Qty Unit Price 750 $2.60 | 0 | 22 Weeks | Reel | PLCC-32 | 512kb | 64K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount | ||
| Qty Unit Price 32 $4.40 128 $4.32 320 $4.28 800 $4.23 1,280 $4.16 | 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 Unit Price 32 $3.34 | 0 | 8 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 $3.64 | 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 12 $4.61 | 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 Unit Price 12 $5.11 48 $5.03 180 $4.95 480 $4.89 1,200 $4.79 | 0 | 4 Weeks | Tube | PDIP-32 | 2Mb | 256 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Through Hole | |
| Qty Unit Price 32 $7.21 64 $7.16 96 $7.13 128 $7.09 | 0 | 8 Weeks | Tube | PLCC-32 | 4Mb | 512 K x 8 | 4.5V to 5.5V | 70ns | Industrial | Surface Mount | ||
| Qty Unit Price 32 $7.11 64 $7.06 96 $7.03 128 $7.00 | 0 | 4 Weeks | Tube | PLCC-32 | 4Mb | 512 K x 8 | 5V | 90ns | Industrial | Surface Mount | ||
| Qty Unit Price 12 $10.47 48 $10.37 120 $10.31 300 $10.24 480 $10.14 | 0 | 4 Weeks | Tube | PDIP-32 | 4Mb | 512 K x 8 | 4.5V to 5.5V | 90ns | Industrial | Through Hole |
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