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M27C2001-55N1X ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 4 Page - STMicroelectronics

๋ถ€ํ’ˆ๋ช… M27C2001-55N1X
์ƒ์„ธ๋‚ด์šฉ  2 Mbit (256Kb x 8) UV EPROM and OTP EPROM
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M27C2001-55N1X ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 4 Page - STMicroelectronics

 
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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.
The associated transient voltage peaks can be
suppressed by complying with the two line output
control and by properly selected decoupling ca-
pacitors. It is recommended that a 0.1
ยตF ceramic
capacitor be used on every device between VCC
and VSS. This should be a high frequency capaci-
tor of low inherent inductance and should be
placed as close to the device as possible. In addi-
tion, a 4.7
ยตF bulk electrolytic capacitor should be
used between VCC and VSS for every eight devic-
es. The bulk capacitor should be located near the
power supply connection point. The purpose of the
bulk capacitor is to overcome the voltage drop
caused by the inductive effects of PCB traces.
Table 5. AC Measurement Conditions
High Speed
Standard
Input Rise and Fall Times
โ‰ค 10ns
โ‰ค 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
โ„ฆ
1N914
DEVICE
UNDER
TEST
Table 6. Capacitance (1) (TA =25 ยฐC, 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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