TC74HC590AP_07 Datasheet, PDF (1/11 Pages) Toshiba Semiconductor – CMOS Digital Integrated Circuit Silicon Monolithic 8-Bit Binary Counter/Register with 3-State Outputs

TC74HC590AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC590AP,TC74HC590AF
8-Bit Binary Counter/Register with 3-State Outputs
The TC74HC590A is a high speed CMOS 8-BIT
COUNTER/REGISTER fabricated with silicon gate C²MOS
technology.
It achieves the high speed operation similar to epuivalent
LSTTL while maintaining the CMOS low power dissipation.
The internal counter counts on the positive going edge of
Counter Clock (CCK) when Counter Clock Enable ( CCKEN ) is
low. When Counter Clear ( CCLR ) is low, the internal counter is
cleared asynchronously to the clock.
Data in the internal counter are loaded into the register at
positive going edge of Register Clock (RCK), and the register
outputs are controlled by enable input ( G ).
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: f_max = 62 MHz (typ.) at V_CC = 5 V
• Low power dissipation: I_CC = 4 μA (max) at Ta = 25°C
• High noise immunity: V_NIH = V_NIL = 28% V_CC (min)
• Output drive capability: 15 LSTTL loads for QA to QH
10 LSTTL loads for RCO
• Symmetrical output impedance: |I_OH| = I_OL = 6 mA (min)
For QA to QH
|I_OH| = I_OL = 4 mA (min)
For RCO
• Balanced propagation delays: t_pLH ^∼− t_pHL
• Wide operating voltage range: V_CC (opr) = 2 to 6 V
• Pin and function compatible with 74LS590
Pin Assignment
TC74HC590AP
TC74HC590AF
Weight
DIP16-P-300-2.54A
SOP16-P-300-1.27A
: 1.00 g (typ.)
: 0.18 g (typ.)
1
2007-10-01