Product Information

AT27C256R-45PU

Hot AT27C256R-45PU electronic component of Microchip

Datasheet
Memory; EPROM OTP; 32kx8bit; 5V; 45ns; DIP28

Manufacturer: Microchip
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 2.6451 ea
Line Total: USD 2.6451

2 - Global Stock
Ships to you by
Mon. 01 Apr
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
3016 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 14
Multiples : 14

Stock Image

AT27C256R-45PU
Microchip

14 : USD 3.675
56 : USD 3.3625
112 : USD 3.3125
252 : USD 3.225
504 : USD 3.1375
1008 : USD 3.025
2506 : USD 2.975
5012 : USD 2.9375

17 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 1
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

1 : USD 3.1663
25 : USD 3.1113
28 : USD 3.049
100 : USD 3.049
112 : USD 3.049

1108 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 1
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

1 : USD 3.2563
25 : USD 3.1911
28 : USD 3.1911
100 : USD 3.1911

1045 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 14
Multiples : 14

Stock Image

AT27C256R-45PU
Microchip

14 : USD 3.3668

5047 - Global Stock


Ships to you between Thu. 11 Apr to Mon. 15 Apr

MOQ : 1
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

1 : USD 2.967
28 : USD 2.9095
112 : USD 2.9095

97 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 1
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

1 : USD 3.965
5 : USD 3.679
13 : USD 3.484

1108 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 3
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

3 : USD 3.2563
25 : USD 3.1911

298 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 8
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

8 : USD 5.1177
10 : USD 4.706
50 : USD 4.0442
100 : USD 4.0425

97 - Global Stock


Ships to you between Fri. 05 Apr to Thu. 11 Apr

MOQ : 20
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

20 : USD 4.515

2 - Global Stock


Ships to you by Mon. 01 Apr

MOQ : 1
Multiples : 1

Stock Image

AT27C256R-45PU
Microchip

1 : USD 2.6451
10 : USD 2.4046
25 : USD 2.2443
50 : USD 2.1642
100 : USD 2.0039

     
Manufacturer
Product Category
RoHS - XON
Icon ROHS
Mounting Style
Package / Case
Type
Memory Size
Organisation
Interface Type
Operating Supply Current
Programming Voltage
Supply Voltage - Max
Supply Voltage - Min
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Access Time
Brand
Operating Current
Operating Supply Voltage
Output Enable Access Time
Factory Pack Quantity :
Cnhts
Hts Code
Mxhts
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Features Fast read access time 45ns Low-power CMOS operation 100A max standby 20mA max active at 5MHz JEDEC standard packages 28-lead PDIP 32-lead PLCC 5V10% supply 256K (32K x 8) High reliability CMOS technology One-time 2,000V ESD protection 200mA latchup immunity Programmable, Rapid programming algorithm 100s/byte (typical) Read-only Memory CMOS- and TTL-compatible inputs and outputs Integrated product identification code Industrial and automotive temperature ranges Atmel AT27C256R Green (Pb/halide-free) packaging option 1. Description The Atmel AT27C256R is a low-power, high-performance, 262,144-bit, one-time pro- grammable, read-only memory (OTP EPROM) organized as 32K by 8 bits. It requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 45ns, eliminating the need for speed reducing WAIT states on high-performance micropro- cessor systems. The Atmel scaled CMOS technology provides low active power consumption and fast pro- gramming. Power consumption is typically only 8mA in active mode and less than 10A in standby mode. The AT27C256R is available in a choice of industry-standard, JEDEC-approved, one-time programmable (OTP) PDIP and PLCC packages. All devices feature two-line control (CE, OE) to give designers the flexibility to prevent bus contention. With 32K byte storage capability, the AT27C256R allows firmware to be stored reliably and to be accessed by the system without the delays of mass storage media. The AT27C256R has additional features to ensure high quality and efficient production use. The rapid programming algorithm reduces the time required to program the part and guar- antees reliable programming. Programming time is typically only 100s/byte. The integrated product identification code electronically identifies the device and manufacturer. This feature is used by industry-standard programming equipment to select the proper pro- gramming algorithms and voltages. 0014OEPROM10/112. Pin configurations 32-lead PLCC 28-lead PDIP Pin name Function Top view Top view A0 - A14 Addresses O0 - O7 Outputs VPP 1 28 VCC A12 2 27 A14 CE Chip enable A6 5 29 A8 A7 3 26 A13 A5 6 28 A9 A6 4 25 A8 OE Output enable A4 7 27 A11 A5 5 24 A9 A3 8 26 NC NC No connect A4 6 23 A11 A2 9 25 OE A3 7 22 OE A1 10 24 A10 A2 8 21 A10 A0 11 23 CE A1 9 20 CE NC 12 22 O7 A0 10 19 O7 O0 13 21 O6 O0 11 18 O6 O1 12 17 O5 O2 13 16 O4 GND 14 15 O3 Note: PLCC package pins 1 and 17 are dont connect 3. System considerations Switching between active and standby conditions via the chip enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device non-conformance. At a minimum, a 0.1F, high-frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the V and ground terminals of the device, as close to the device as possible. CC Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.7F bulk electrolytic capacitor should be utilized, again connected between the V and ground terminals. This capacitor should be positioned as CC close as possible to the point where the power supply is connected to the array. Figure 3-1. Block diagram 2 Atmel AT27C256R 0014OEPROM10/11 O1 14 4 A7 O2 15 3 A12 GND 16 2 VPP NC 17 1 NC O3 18 32 VCC O4 19 31 A14 O5 20 30 A13

Tariff Desc

8542.32.00 32 No ..CMOS and MOS Read Only Memory and Programmable Read Only Memory whether erasable or non-erasable (for example, flash memory, EPROM, E2PROM, EAPROM, NOVRAM, ROM and PROM)
AT9
ATM
Atmel
Atmel Wireless (VA)
M4S
M6S
M8S
M9S
MCP
Micrel
Micrel Inc
MICREL SEMICONDUCTOR
MICREL SYNERGY SEMI
MICROCHIP (ATMEL)
MICROCHIP (MICREL)
MICROCHIP (MICROSEMI)
MICROCHIP (SUPERTEX)
Microchip / Microsemi
Microchip / Vectron
Microchip Tech
MICROCHIP TECH.
Microchip Technology
Microchip Technology Micrel
Microchip Technology / Atmel
Microchip Technology / Micrel
MICROCHIPDIRECT
MICROSEMI
Microsemi Analog Mixed Signal Group
Microsemi Analog Mixed Signal Group [MIL]
Microsemi Commercial Components Group
MICROSEMI COMMUNICATIONS INC.
Microsemi Consumer Medical Product Group
Microsemi Corporation
Microsemi FTD
Microsemi Power Management Group
Microsemi Power Products Group
Microsemi SoC
MICROSEMI/LAWRENCE
MICROSEMI/LINFINITY
MSC
Roving Networks
ROVING NETWORKS INC
ROVING NETWORKS INC.
ROVING NETWORKS, INC.
Silicon Storage
SILICON STORAGE TECH
SILICON STORAGE TECHNOLOGY
Supertex
Vectron
VECTRON INTERNATIONAL
VECTRON INTL
Vitesse Microsemi
Vitesse / Microsemi

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