CY7C331-30WMB Cypress Semiconductor Corporation., CY7C331-30WMB Datasheet

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CY7C331-30WMB

Manufacturer Part Number
CY7C331-30WMB
Description
Manufacturer
Cypress Semiconductor Corporation.
Datasheets

Specifications of CY7C331-30WMB

Date_code
00+
Features
Cypress Semiconductor Corporation
Logic Block Diagram
• Twelve I/O macrocells each having:
• 192 product terms with variable distribution to macro-
• 13 inputs, 12 feedback I/O pins, plus 6 shared I/O mac-
• High speed: 20 ns maximum t
• Security bit
• Space-saving 28-pin slim-line DIP package; also avail-
cells
rocell feedbacks for a total of 31 true and complemen-
tary inputs
able in 28-pin PLCC
— One state flip-flop with an XOR sum-of-products
— One feedback flip-flop with input coming from the
— Independent (product term) set, reset, and clock in-
— Asynchronous bypass capability on all registers un-
— Global or local output enable on three-state I/O
— Feedback from either register to the array
input
I/O pin
puts on all registers
der product term control (r = s = 1)
OE/I
I/O
4
14
15
11
12
12
I/O
I
13
16
11
10
I/O
6
I
12
17
10
9
10
I/O
PD
11
18
I
9
8
I/O
8
I
10
19
8
7
3901 North First Street
PROGRAMMABLE AND ARRAY
8
I/O
20
I
9
7
6
GND
GND
21
8
(192x62)
Asynchronous Registered EPLD
Functional Description
The CY7C331 is the most versatile PLD available for asyn-
chronous designs. Central resources include twelve full D-type
flip-flops with separate set, reset, and clock capability. For in-
creased utility, XOR gates are provided at the D-inputs and the
product term allocation per flip-flop is variably distributed.
I/O Resources
Pins 1 through 7 and 9 through 14 serve as array inputs; pin
14 may also be used as a global output enable for the I/O
macrocell three-state outputs. Pins 15 through 20 and 23
through 28 are connected to I/O macrocells and may be man-
aged as inputs or outputs depending on the configuration and
the macrocell OE terms.
V
22
I
7
• Low power
6
CC
— 90 mA typical I
— 180 mA I
— UV-erasable and reprogrammable
— Programming and operation 100% testable
8
I
23
I/O
6
5
5
San Jose
CC
8
I
24
I/O
4
5
4
maximum
January 1989 – Revised December 1992
CC
10
I
25
I/O
3
4
quiescent
3
CA 95134
6
26
I/O
I
2
3
2
12
I/O
27
I
2
1
1
CY7C331
fax id: 6016
4
408-943-2600
I/O
28
I
1
0
0
C331–1

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