4.4 AC Characteristics

Table 4-3. AC Characteristics⁽¹⁾
Parameter	Symbol	Minimum	Maximum	Units	Test Conditions
Clock Frequency, SK	f_SK	0	2	MHz	4.5V ≤ V_CC ≤ 5.5V
		0	1	MHz	2.5V ≤ V_CC ≤ 5.5V
		0	250	kHz	1.7V ≤ V_CC ≤ 5.5V
High Time, SK	t_SKH	250	—	ns	2.5V ≤ V_CC ≤ 5.5V
High Time, SK	t_SKH	1000	—	ns	1.7V ≤ V_CC ≤ 5.5V
Low Time, SK	t_SKL	250	—	ns	2.5V ≤ V_CC ≤ 5.5V
Low Time, SK	t_SKL	1000	—	ns	1.7V ≤ V_CC ≤ 5.5V
Minimum CS Low Time	t_CS	250	—	ns	2.5V ≤ V_CC ≤ 5.5V
Minimum CS Low Time	t_CS	1000	—	ns	1.7V ≤ V_CC ≤ 5.5V
CS Setup Time	t_CSS	50	—	ns	2.5V ≤ V_CC ≤ 5.5V, Relative to SK
CS Setup Time	t_CSS	200	—	ns	1.7V ≤ V_CC ≤ 5.5V, Relative to SK
DI Setup Time	t_DIS	100	—	ns	2.5V ≤ V_CC ≤ 5.5V, Relative to SK
DI Setup Time	t_DIS	400	—	ns	1.7V ≤ V_CC ≤ 5.5V, Relative to SK
CS Hold Time	t_CSH	0	—	ns	Relative to SK
DI Hold Time	t_DIH	100	—	ns	2.5V ≤ V_CC ≤ 5.5V, Relative to SK
DI Hold Time	t_DIH	400	—	ns	1.7V ≤ V_CC ≤ 5.5V, Relative to SK
Output Delay to 1	t_PD1	—	250	ns	2.5V ≤ V_CC ≤ 5.5V
Output Delay to 1	t_PD1	—	1000	ns	1.7V ≤ V_CC ≤ 5.5V
Output Delay to 0	t_PD0	—	250	ns	2.5V ≤ V_CC ≤ 5.5V
Output Delay to 0	t_PD0	—	1000	ns	1.7V ≤ V_CC ≤ 5.5V
CS to Status Valid	t_SV	—	250	ns	2.5V ≤ V_CC ≤ 5.5V
CS to Status Valid	t_SV	—	1000	ns	1.7V ≤ V_CC ≤ 5.5V,
CS to DO in High‑impedance	t_DF	—	150	ns	2.5V ≤ V_CC ≤ 5.5V, CS = V_IL
CS to DO in High‑impedance	t_DF	—	400	ns	1.7V ≤ V_CC ≤ 5.5V, CS = V_IL
Write Cycle Time	t_WP	0.1	5	ms	1.7V ≤ V_CC ≤ 5.5V

Note:

Applicable over recommended operating range from T_A = -40°C to +85°C, V_CC = As Specified, C_L = 1 TTL Gate and 100 pF (unless otherwise noted).