M27V101-100K1TR datasheet(4/15 Pages) STMICROELECTRONICS

Part #	M27V101-100K1TR

Description	1 Mbit (128Kb x 8) Low Voltage UV EPROM and OTP EPROM

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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4 / 15 page

M27V101

4/15

Two Line Output Control

Because EPROMs are usually used in larger

memory arrays, this product features a 2 line con-

trol function which accommodates the use of mul-

tiple memory connection. The two line control

function allows:

a. the lowest possible memory power dissipation,

b. complete assurance that output bus contention

will not occur.

For the most efficient use of these two control

lines, E should be decoded and used as the prima-

ry device selecting function, while G should be

made a common connection to all devices in the

array and connected to the READ line from the

system control bus. This ensures that all deselect-

ed memory devices are in their low power standby

mode and that the output pins are only active

when data is required from a particular memory

device.

System Considerations

The power switching characteristics of Advanced

CMOS EPROMs require careful decoupling of the

devices. The supply current, ICC, has three seg-

ments that are of interest to the system designer:

the standby current level, the active current level,

and transient current peaks that are produced by

the falling and rising edges of E. The magnitude of

the transient current peaks is dependent on the

capacitive and inductive loading of the device at

the output.

Table 5. AC Measurement Conditions

High Speed

Standard

Input Rise and Fall Times

≤ 10ns

≤ 20ns

Input Pulse Voltages

0 to 3V

0.4V to 2.4V

Input and Output Timing Ref. Voltages

1.5V

0.8V and 2V

Figure 3. AC Testing Input Output Waveform

AI01822

3V

High Speed

0V

1.5V

2.4V

Standard

0.4V

2.0V

0.8V

Figure 4. AC Testing Load Circuit

AI01823B

1.3V

OUT

CL

CL = 30pF for High Speed

CL = 100pF for Standard

CL includes JIG capacitance

3.3k

Ω

1N914

DEVICE

UNDER

TEST

Table 6. Capacitance (1) (TA =25 °C, f = 1 MHz)

Note: 1. Sampled only, not 100% tested.

Symbol

Parameter

Test Condit ion

Min

Max

Unit

CIN

Input Capacitance

VIN =0V

6pF

COUT

Output Capacitance

VOUT =0V

12

pF

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