Cypress CY62256 manual Pin Configurations, Maximum Ratings, Operating Range

CY62256

Pin Configurations

Narrow SOIC

Top View

A5	1	28	VCC
A6	2	27	WE
A7	3	26	A
			4
A8	4	25	A3
A9	5	24	A2
A10	6	23	A1
A11	7	22	OE
A12	8	21	A0
A13	9	20	CE
A14	10	19	I/O
		18	7
I/O	11		I/O6
0	12	17	I/O5
I/O
1
I/O2	13	16	I/O4
GND	14	15	I/O3

		DIP
	Top View
A5	1	28	VCC
A6	2	27	WE
A7	3	26	A
			4
A8	4	25	A3
A9	5	24	A2
A10	6	23	A1
A11	7	22	OE
A12	8	21	A0
A13	9	20	CE
A14	10	19	I/O
		18	7
I/O	11		I/O6
0	12	17	I/O5
I/O
1
I/O2	13	16	I/O4
GND	14	15	I/O3

						A0
	OE		22		21
		A1	23		20	CE
		A2	24		19	I/O7
		A	25		18	I/O6
3						I/O5
		A4	26		17
	WE		27	TSOP I	16	I/O4
V			28		15	I/O3
		CC		Top View		GND
		A5	1		14
		A6	2	(not to scale)	13	I/O2
		A7	3		12	I/O1
		A8	4		11	I/O0
						A14
		A	5		10
9					9	A13
	A		6
10						A12
	A11		7		8
		A11				A12
			7		8
		A10	6		9	A13
		A9	5		10	A14
		A8	4	TSOP I	11	I/O0
		A7	3		12	I/O1
				Reverse Pinout
		A6	2		13	I/O2
		A5	1	Top View	14	GND
	VCC		28	(not to scale)	15	I/O3
		WE	27		16	I/O4
		A4	26		17	I/O5
		A3	25		18	I/O6
		A2	24		19	I/O7
		A1	23		20	CE
		OE	22		21	A0

Maximum Ratings

(Above which the useful life may be impaired. For user guide- lines, not tested.)

Storage Temperature	–65°C to +150° C
Ambient Temperature...................................................with	0° C to +70° C
Power Applied
Supply Voltage to Ground Potential
(Pin 28 to Pin 14)	–0.5V to +7.0V
DC Voltage Applied to Outputs
in High-Z State[2]	–0.5V to VCC + 0.5V

Electrical Characteristics Over the Operating Range

DC Input Voltage[2]	................................ –0.5V to VCC + 0.5V
Output Current into Outputs (LOW)			20 mA
Static Discharge Voltage			> 2001V
(per MIL-STD-883, Method 3015)
Latch-up Current		> 200 mA
Operating Range
Range	Ambient Temperature	VCC
Commercial	0° C to +70° C	5V ±	10%
Industrial	–40°C to +85° C	5V ±	10%

CY62256− 55

CY62256− 70

Parameter

Description

Test Conditions

Min.

Typ.[3]

Max.

Min.

Typ.[3]

Max.

Unit

VOH

Output HIGH Voltage

VCC = Min., IOH = − 1.0 mA

2.4

2.4

V

VOL

Output LOW Voltage

VCC = Min., IOL = 2.1 mA

0.4

0.4

V

VIH

Input HIGH Voltage

2.2

VCC

2.2

VCC

V

+0.5V

+0.5V

VIL

Input LOW Voltage

–0.5

0.8

–0.5

0.8

V

IIX

Input Leakage Current

GND < VI < VCC

–0.5

+0.5

–0.5

+0.5

∝ A

IOZ

Output Leakage Current

GND < VO < VCC, Output Disabled

–0.5

+0.5

–0.5

+0.5

∝ A

ICC

VCC Operating Supply

VCC = Max., IOUT = 0 mA,

28

55

28

55

mA

Current

f = fMAX = 1/tRC

L

25

50

25

50

mA

LL

25

50

25

50

mA

ISB1

Automatic CE

Max. VCC,

CE

> VIH,

0.5

2

0.5

2

mA

Power-down Current—

VIN > VIH or VIN < VIL, f = fMAX

L

0.4

0.6

0.4

0.6

mA

TTL Inputs

LL

0.3

0.5

0.3

0.5

mA

Notes:

2.VIL (min.) = − 2.0V for pulse durations of less than 20 ns.

3.Typical specifications are the mean values measured over a large sample size across normal production process variations and are taken at nominal conditions (TA = 25° C, VCC). Parameters are guaranteed by design and characterization, and not 100% tested.

Document #: 38-05248 Rev. *B Page 2 of 11