AT28C64B-15PC Atmel, AT28C64B-15PC Datasheet

IC EEPROM 64KBIT 150NS 28DIP

AT28C64B-15PC

Manufacturer Part Number
AT28C64B-15PC
Description
IC EEPROM 64KBIT 150NS 28DIP
Manufacturer
Atmel
Datasheet

Specifications of AT28C64B-15PC

Format - Memory
EEPROMs - Parallel
Memory Type
EEPROM
Memory Size
64K (8K x 8)
Speed
150ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Features
Description
The AT28C64B is a high-performance electrically-erasable and programmable read
only memory (EEPROM). Its 64K of memory is organized as 8,192 words by 8 bits.
Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers
Pin Configurations
Note:
Pin Name
A0 - A12
CE
OE
WE
I/O0 - I/O7
NC
DC
Fast Read Access Time – 150 ns
Automatic Page Write Operation
Fast Write Cycle Times
Low Power Dissipation
Hardware and Software Data Protection
DATA Polling and Toggle Bit for End of Write Detection
High Reliability CMOS Technology
Single 5 V 10% Supply
CMOS and TTL Compatible Inputs and Outputs
JEDEC Approved Byte-wide Pinout
Commercial and Industrial Temperature Ranges
– Internal Address and Data Latches for 64 Bytes
– Page Write Cycle Time: 10 ms Maximum (Standard)
– 1 to 64-byte Page Write Operation
– 40 mA Active Current
– 100 µA CMOS Standby Current
– Endurance: 100,000 Cycles
– Data Retention: 10 Years
2 ms Maximum (Option)
I/O0
NC
A6
A5
A4
A3
A2
A1
A0
PLCC package pins 1 and 17 are
DON’T CONNECT.
5
6
7
8
9
10
11
12
13
Top View
PLCC
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
No Connect
Don’t Connect
29
28
27
26
25
24
23
22
21
A8
A9
A11
NC
OE
A10
CE
I/O7
I/O6
VCC
A11
A12
WE
OE
NC
NC
A9
A8
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
GND
I/O0
I/O1
I/O2
A12
NC
A7
A6
A5
A4
A3
A2
A1
A0
Top View
TSOP
PDIP, SOIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Top View
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
WE
NC
A8
A9
A11
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
64K (8K x 8)
Parallel
EEPROM with
Page Write and
Software Data
Protection
AT28C64B
Rev. 0270I–PEEPR–08/03
1

Related parts for AT28C64B-15PC

AT28C64B-15PC Summary of contents

Page 1

... JEDEC Approved Byte-wide Pinout • Commercial and Industrial Temperature Ranges Description The AT28C64B is a high-performance electrically-erasable and programmable read only memory (EEPROM). Its 64K of memory is organized as 8,192 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers Pin Configurations ...

Page 2

... When the device is dese- lected, the CMOS standby current is less than 100 µA. The AT28C64B is accessed like a Static RAM for the read or write cycle without the need for external components. The device contains a 64-byte page register to allow writ- ing bytes simultaneously ...

Page 3

... PAGE WRITE: The page write operation of the AT28C64B allows bytes of data to be written into the device during a single internal programming period. A page write operation is initiated in the same manner as a byte write; after the first byte is written, it can then be followed additional bytes. Each successive byte must be loaded within 150 µ ...

Page 4

... Algorithms” on page 9.). After writing the 3-byte command sequence and waiting t that even after SDP is enabled, the user may still perform a byte or page write to the AT28C64B by preceding the data to be written by the same 3-byte command sequence used to enable SDP. Once set, SDP remains active unless the disable command sequence is issued. Power transitions do not disable SDP, and SDP protects the AT28C64B during power-up and power-down conditions ...

Page 5

... ACC after the falling edge of CE without impact pF). L AT28C64B Min Max 10 10 Com., Ind. 100 2 40 0.8 2.0 0.40 2.4 AT28C64B-20 AT28C64B-25 Min Max Min 200 200 OUTPUT VALID . ACC after an address change ...

Page 6

... Symbol Parameter Address, OE Setup Time AS OES t Address Hold Time AH t Chip Select Setup Time CS t Chip Select Hold Time CH t Write Pulse Width ( Data Setup Time Data, OE Hold Time DH OEH AT28C64B < Max 6 12 Units Conditions OUT Min Max Units 100 ...

Page 7

... AC Write Waveforms WE Controlled t OES OE ADDRESS DATA IN CE Controlled t OES OE ADDRESS DATA IN 0270I–PEEPR–08/03 t OEH OEH AT28C64B ...

Page 8

... Page Mode Write Waveforms -A12 VALID ADD VALID DATA DATA Notes through A12 must specify the same page address during each high to low transition of WE (or CE must be high only when WE and CE are both low. AT28C64B 8 (1)(2) t WPH Min Max Units 10 ...

Page 9

... Notes for software program code: 2. Data Format: I/O7 - I/O0 (Hex); Address Format: A12 - A0 (Hex). 3. Write Protect state will be activated at end of write even if no other data is loaded. 4. Write Protect state will be deactivated at end of write period even if no other data is loaded bytes of data are loaded. AT28C64B t H (2) 9 ...

Page 10

... Software Data Protection Disable Algorithm Note: AT28C64B 10 (1) LOAD DATA AA TO ADDRESS 1555 LOAD DATA 55 TO ADDRESS 0AAA LOAD DATA 80 TO ADDRESS 1555 LOAD DATA AA TO ADDRESS 1555 LOAD DATA 55 TO ADDRESS 0AAA LOAD DATA 20 TO ADDRESS 1555 EXIT DATA (3) PROTECT STATE ...

Page 11

... A12 DATA Notes through A12 must specify the same page address during each high to low transition of WE (or CE) after the software code has been entered must be high only when WE and CE are both low. 0270I–PEEPR–08/03 (1)(2) t WPH AT28C64B t BLC ...

Page 12

... Data Hold Time Hold Time OEH ( Output Delay OE t Write Recovery Time WR Notes: 1. These parameters are characterized and not 100% tested. See “AC Read Characteristics” on page 5. Data Polling Waveforms t DH AT28C64B 12 (1) t OEH t OE Min Typ Max 0270I–PEEPR–08/03 Units ...

Page 13

... Toggle Bit Waveforms t 0270I–PEEPR–08/03 (1) t OEH OEHP Notes: 1. Toggling either both OE and CE will operate toggle bit. 2. Beginning and ending state of I/O6 will vary. 3. Any address location may be used but the address should not vary. AT28C64B Min Typ Max 10 10 150 Units ...

Page 14

... AT28C64B 14 0270I–PEEPR–08/03 ...

Page 15

... The following table lists standard Atmel products that can be ordered. Device Numbers Speed AT28C64B 15 AT28C64B 20 AT28C64B 25 AT28C64B – Die Products Reference Section: Parallel EEPROM Die Products 0270I–PEEPR–08/03 Ordering Code AT28C64B-15JC AT28C64B-15PC AT28C64B-15SC AT28C64B-15TC AT28C64B-15JI AT28C64B-15PI AT28C64B-15SI AT28C64B-15TI AT28C64B-20JC AT28C64B-20PC AT28C64B-20SC AT28C64B-20TC AT28C64B-20JI AT28C64B-20PI AT28C64B-20SI AT28C64B-20TI AT28C64B-25JC ...

Page 16

... Plastic J-leaded Chip Carrier (PLCC) 28P6 28-lead, 0.600" Wide, Plastic Dual Inline Package (PDIP) 28S 28-lead, 0.300" Wide, Plastic Gull Wing Small Outline (SOIC) 28T 28-lead, Plastic Thin Small Outline Package (TSOP) W Die AT28C64B 16 Package Type 0270I–PEEPR–08/03 ...

Page 17

... Lead coplanarity is 0.004" (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R 0270I–PEEPR–08/03 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER TITLE 32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC) AT28C64B 0.318(0.0125) 0.191(0.0075 COMMON DIMENSIONS (Unit of Measure = mm) MIN MAX SYMBOL NOM NOTE A 3.175 – ...

Page 18

... SEATING PLANE Notes: 1. This package conforms to JEDEC reference MS-011, Variation AB. 2. Dimensions D and E1 do not include mold Flash or Protrusion. Mold Flash or Protrusion shall not exceed 0.25 mm (0.010"). TITLE 2325 Orchard Parkway San Jose, CA 95131 R AT28C64B 18 D PIN 0º ~ 15º REF eB 28P6, 28-lead (0.600"/15.24 mm Wide) Plastic Dual ...

Page 19

... San Jose, CA 95131 R 0270I–PEEPR–08/03 7.60(0.2992) 10.65(0.419) 7.40(0.2914) 10.00(0.394) 1.27(0.50) BSC 2.65(0.1043) 2.35(0.0926) 0.30(0.0118) 0.10(0.0040) SIDE VIEWS 1.27(0.050) 0.40(0.016) TITLE 28S, 28-lead, 0.300" Body, Plastic Gull Wing Small Outline (SOIC) JEDEC Standard MS-013 AT28C64B 0.32(0.0125) 0.23(0.0091) DRAWING NO. 28S 8/4/03 REV ...

Page 20

... No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. ...

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