CY7C166-20PC Cypress Semiconductor Corporation., CY7C166-20PC Datasheet

no-image

CY7C166-20PC

Manufacturer Part Number
CY7C166-20PC
Description
16K x 4 Static RAM
Manufacturer
Cypress Semiconductor Corporation.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C166-20PC
Manufacturer:
CY
Quantity:
22
Part Number:
CY7C166-20PC
Quantity:
8
Part Number:
CY7C166-20PC
Quantity:
200
Cypress Semiconductor Corporation
Document #: 38-05025 Rev. **
Features
Functional Description
The CY7C164 and CY7C166 are high-performance CMOS
static RAMs organized as 16,384 by 4 bits. Easy memory ex-
pansion is provided by an active LOW Chip Enable (CE) and
]
Selection Guide
• High speed
• Output enable (OE) feature (CY7C166)
• CMOS for optimum speed/power
• Low active power
• Low standby power
• TTL-compatible inputs and outputs
• Automatic power-down when deselected
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum Standby Current (mA)
A
A
A
A
A
A
A
A
— 15 ns
— 633 mW
— 110 mW
Logic Block Diagram
1
2
3
4
5
6
7
8
INPUT BUFFER
256 x 64 x 4
DECODER
COLUMN
ARRAY
POWER
DOWN
3901 North First Street
7C164-15
7C166-15
I/O
I/O
I/O
I/O
CE
(OE)
(7C166 ONLY)
C164–4
WE
3
2
1
0
115
15
20
three-state drivers. The CY7C166 has an active LOW Output
Enable (OE) feature. Both devices have an automatic power-
down feature, reducing the power consumption by 65% when
deselected.
Writing to the device is accomplished when the Chip Enable
(CE) and Write Enable (WE) inputs are both LOW (and the
Output Enable (OE) is LOW for the CY7C166). Data on the
four input/output pins (I/O
memory location specified on the address pins (A
A
Reading the device is accomplished by taking Chip Enable
(CE) LOW (and OE LOW for CY7C166), while Write Enable
(WE) remains HIGH. Under these conditions the contents of
the memory location specified on the address pins will appear
on the four data I/O pins.
The I/O pins stay in a high-impedance state when Chip Enable
(CE) is HIGH (or Output Enable (OE) is HIGH for CY7C166).
A die coat is used to insure alpha immunity.
13
Pin Configurations
GND
CE
).
A
A
A
A
A
A
A
A
A
10
11
12
13
5
6
7
8
9
Top View
1
2
3
4
5
6
7
8
9
10
11
7C164
7C164-20
7C166-20
DIP
San Jose
115
20
20
22
21
20
19
18
17
16
15
14
13
12
C164–3
GND
CE
OE
V
A
A
A
A
A
I/O
I/O
I/O
I/O
WE
A
A
A
A
A
A
A
A
A
CC
4
3
2
1
0
10
11
12
13
5
6
7
8
9
16K x 4 Static RAM
3
2
1
0
Top View
1
2
3
4
5
6
7
8
9
10
11
12
DIP/SOJ
7C166
0
CA 95134
through I/O
7C164-25
7C166-25
24
23
22
21
20
19
18
17
16
15
14
13
105
25
20
C166–1
V
A
A
A
A
A
NC
I/O
I/O
I/O
I/O
WE
Revised August 24, 2001
CC
4
3
2
1
0
3
2
1
0
GND
CE
NC
A
A
A
A
3
A
A
A
A
A
10
11
12
13
) is written into the
5
6
7
8
9
Top View
CY7C164
CY7C166
10
11
12
1
2
3
4
5
6
7
8
9
7C164
SOJ
408-943-2600
7C164-35
7C166-35
105
35
20
24
23
22
21
20
19
18
17
16
15
14
13
0
through
C164–2
V
A
A
A
A
A
NC
I/O
I/O
I/O
I/O
WE
CC
4
3
2
1
0
3
2
1
0

Related parts for CY7C166-20PC

CY7C166-20PC Summary of contents

Page 1

... I/O pins. The I/O pins stay in a high-impedance state when Chip Enable (CE) is HIGH (or Output Enable (OE) is HIGH for CY7C166). A die coat is used to insure alpha immunity. Pin Configurations DIP ...

Page 2

... Min. Duty Cycle = 100% Max > V – 0.3V > V – 0. < 0.3V IN Test Conditions T = 25° MHz 5.0V CC power-up, otherwise I CC CY7C164 CY7C166 Ambient Temperature 0°C to +70°C 5V 7C164-20 7C164-25, 35 7C166-20 7C166-25, 35 Max. Min. Max. Min. Max. 2.4 2.4 0.4 0.4 0.4 V 2 ...

Page 3

... Min. Max. Min 7C166 10 7C166 3 3 7C166 less than t for any given device. These parameters are guaranteed by design and not 100% tested. HZCE LZCE CY7C164 CY7C166 ALL INPUT PULSES 3.0V 90% 90% 10% GND < 7C164-25 7C164-35 7C166-25 7C166-35 Max. Min. Max. Min. Max ...

Page 4

... SUPPLY CURRENT Write Cycle No. 1 (WE Controlled) ADDRESS DATA IN DATA I/O DATA UNDEFINED Notes HIGH for read cycle. 10. Device is continuously selected 11. Address valid prior to or coincident with CE transition LOW. 12. CY7C166 only: Data I/O will be high-impedance Document #: 38-05025 Rev OHA ACE t DOE t LZOE ...

Page 5

... Switching Waveforms (continued) Write Cycle No. 2 (CE Controlled) ADDRESS DATA IN DATA I/O Note: 13 goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state. Document #: 38-05025 Rev. ** [8, 12, 13 SCE PWE DATA VALID HIGH IMPEDANCE CY7C164 CY7C166 C164–10 Page ...

Page 6

... OUTPUT SINK CURRENT vs. OUTPUT VOLTAGE 140 120 100 0.0 1.0 2.0 125 OUTPUT VOLTAGE (V) NORMALIZED I vs. CYCLE TIME 25° 0.5V IN 1.00 0.75 0.50 800 1000 10 20 CYCLE FREQUENCY (MHz) CY7C164 CY7C166 = 5.0V = 25°C 3.0 4.0 = 5.0V CC =25°C A 3.0 4 Page ...

Page 7

... H High Z Ordering Information Speed (ns) Ordering Code 15 CY7C164-15PC CY7C164-15VC 20 CY7C164-20PC CY7C164-20VC 25 CY7C164-25PC CY7C164-25VC 35 CY7C164-35PC CY7C164-35VC Speed (ns) Ordering Code 15 CY7C166-15PC CY7C166-15VC 20 CY7C166-20PC CY7C166-20VC 25 CY7C166-25PC CY7C166-25VC 35 CY7C166-35PC CY7C166-35VC Document #: 38-05025 Rev. ** Address Designators Mode Address Name Mode A10 Deselect/Power-Down A11 Read A12 Write A13 ...

Page 8

... Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. 22-Lead (300-Mil) Molded DIP P9 24-Lead (300-Mil) Molded DIP P13/P13A 24-Lead (300-Mil) Molded SOJ V13 CY7C164 CY7C166 51-85012-A 51-85013-A 51-85030-A Page ...

Page 9

... Document Title: CY7C164, CY7C166 16K x 4 Static RAM Document Number: 38-05025 Issue REV. ECN NO. Date ** 106811 09/10/01 Document #: 38-05025 Rev. ** Orig. of Change SZV Change from Spec number: 38-00032 to 38-05025 CY7C164 CY7C166 Description of Change Page ...

Related keywords