PDM41257SA10SO 데이터 시트보기 (PDF) - Paradigm Technology

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PDM41257SA10SO

256K Static RAM 256K x 1-Bit

Paradigm Technology 

PDM41257

Capacitance(1) (TA = +25°C, f = 1.0 MHz)

Symbol

Parameter

Conditions Max.

Unit

CIN

COUT

Input Capacitance

Output Capacitance

VIN = 0V

8

pF

VOUT = 0V

8

pF

NOTE: 1. This parameter is determined by device characterization but is not production tested.

AC Test Conditions

Input Pulse Levels

Input rise and fall times

Input timing reference levels

Output reference levels

Output load

VSS to 3.0V

3 ns

1.5V

1.5V

See Figures 1 and 2

DOUT

255Ω

+5V

480Ω

30 pF

DOUT

255Ω

+5V

480Ω

5 pF

Figure 1. Output Load Equivalent

Figure 2. Output Load Equivalent

(for tLZCE, tHZCE, tLZWE, tHZWE)

Typical Delta tAA vs Capacitive Loading

5

4

3

2

1

0

0

30

60

90

120

Additional Lumped Capacitive Loading (pF)

4

Rev. 2.2 - 4/27/98

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